Improved Military Rifle IMR 8208 XBR. IMR Enduron 7977 is a slower burn rate in the Enduron family. Feenix: I just posted this in response to a similar question by NavyChief. The IMR Enduron Powder load data published by this website is intended discussion . @3000 fps. In addition to the 6.5x55 mm Swedish, the Sauer 404 is chambered in 15 other . When we are sold out, we are sold out. It may not display this or other websites correctly. have used this powder in a .270 wsm useing the Hornady 150 grain SSTwith the exact load as HODGDON recomends and found it accurate and takeing large red deer out to 500 meters with ease. I picked up some IMR 7977 to try some different bullet/powder combo's but I'm not finding much data. I get 2800 fps with a 300g Berger in my 30 inch barrel. The .300 Norma case has a capacity of 103.0 grains of water, so powder charges will approach 90 grains or more, depending on the bullet weight. Loading Data . This testing was with Hornady 285 ELD-M with Alliant Reloder 26. A true magnum spherical rifle powder, it is superb with heavy bullets in big, overbore rifle cartridges. The maxorder quantity of any powder SKU is, https://shop.hodgdon.com/sites/www/files/2022-04/2022-IMR%20Endurons%20SDS.pdf, https://shop.hodgdon.com/sites/www/files/2020-08/sell-sheet-imr-enduron-final.p. The store will not work correctly in the case when cookies are disabled. If anybody would like to share their load data using IMR 8133, I would be very grateful. holds 78.6 grains of water, which means the Nosler has a 12 percent increase in case volume while maintaining the same 3.340-inch overall cartridge length. IMR is a brand in the Hodgdon Powder Company lineup. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. Reduced Rifle Loads. For a better experience, please enable JavaScript in your browser before proceeding. Lapua's Scenar-L bullet is the result of decades of experience and state of the art manufacturing capabilities combined with extensive testing. Reply. Regarding primer choice for the .300 Norma Magnum, you'll most definitely want a good large rifle magnum primer to ignite that powder column, especially since powder charges can exceed 90 grains. I had been using Hornady 250grn BTHP and have been unable to obtain. I hit Harold bolt lift around 93gr. You are using an out of date browser. Gun: Savage Model 110 BA; Barrel Length: 26 inches; 1-in-9-inch twist; Case: Lapua; Primer: Federal 215 Large Rifle Magnum; Bullet Diameter: .338 inch; Maximum COAL: 3.681 inches; Maximum Case Length: 2.724 inches; Trim to Length: 2.714 inches. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum . When we are sold out, we are sold out. For the 338 Lapua, the 300 grainers are too heavy and IMR 8133 is too slow. * All prices incl. . For powder I like IMR 7828 and scored 2 lbs of the IRM7828scc. I too am interested. IMR 7828SSC 93.8 3201 104.3C 3583 *Magnum 104.6 3336 116.2C 3670 338 Lapua Magnum Suggested Bullet Use 185-grain TTSX BT Sectional Density .231 Ballistic Coefficient .432 C.O.A.L 3.600" uggested ullet se Suggested Bullet Use Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. Yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. Powders include IMR, Hodgdon, Winchester mdslammer Sergeant. Calibers range from .22 to 9.362, and our most well-known bullets are Scenar and Scenar-L match projectiles and Naturalis and Mega hunting bullets. I have 4 shooting buddies that run RPR's. (Please refer to out " Reloading Tips " for proper measurement techniques) If possible, we recommend that you determine the COAL of your rifle, and load your bullets at 1mm short of the lands. Hey guys, does anybody have any IMR 7977- 338LM data? We do not take backorders and our Tech Services team cannot take orders via email or phone. IMR Enduron 7977 is a slower burn rate in the Enduron family. IMR 7977 powder is a magnum propellant with the slowest burn rate of the Enduron powders. Has any one tried this powder with any luck? The length of the neck is just about one bullet diameter at 0.329 inch. with a shortened case body. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. . For the best experience on our site, be sure to turn on Javascript in your browser. Reviews can only be submitted while being logged in. 8mmmaghunter Member. imr 7977 load data 338 lapuathe renaissance apartments chicago. these would be considered max powder charges . forum.accurateshooter.com/threads/imr-7977-in-338-lapua.4021835/, Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.49. .300 win mag imr 7977, 168 grain berger 7mm rem mag with 7977 powder, 26 nosler with imr 7977, 280 ackley improved with imr 7977 data and 168 berger . This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. .338 Lapua Magnum (Hodgdon Data) reloading data with 170 loads. Improved Military Rifle IMR 7977. Magnum, .300 Win. Our mission is to provide quality products and services in a manner which enhances the lives of our employees, familes, customers, suppliers, and our communities. I'm hoping to try 250gr berger EH, 285eld-m, and 285 BTHP. But I agree with the above post. Be Alert: Publisher cannot be responsible for errors in published load data. 8. The Scenar-L has the refined qualities of the original Scenar bullet with higher standards of jacket wall concentricity, weight variation and dimensional uniformity. You are using an out of date browser. 26. Imr 7977. . Reply. In the Hodgdon manual it has the best velocity in a 338 Lapua of any of the powders they tested at 93g at 2688 fps. IMR 4166 possesses the fastest burn rate in the Enduron lineup. Loading density is perfect for magnums, nicely filling . Our component offering includes cases and bullets for both centerfire rifle and handgun. if anyone is interested i did the same process with the IMR 4451 powder in my 6.5x47 lapua for which there is no published data for this powder. Took a while but finally have all the components to reload my 338 Lapua Mag. MTH ( standard, not single feed version. 1. Find load data for IMR 7977 Enduron propellant by clicking the button "Loads for this Powder". Ammunition. It yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. The slowest burn rate Enduron Technology extruded powder is IMR 7977, and is a true magnum cartridge propellant. Hope it helps. Have new brass, Hornady, and primers . The first IMR reloading powders included ever popular favorites IMR3031 (1934), IMR4064 (1935) and IMR4350 (1940). so as always start low and work up . Just for comparison's sake, the 338 Federal will send a 215 grn bullet out at 2500 fps, the 338-06 . I sure wouldn't want to do without it . Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. It yields outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and a host of others. More about this powder: IMR Enduron 7977 is a slower burn rate in the Enduron family. I've been working on trying to get my 338 to shoot better. . IMR 7977 is comparable to Hodgdon H1000. With the bullets touching the lands 69 grains gave me an average velocity of 3140 ft/sec.. I recently bought one each of these powders to try in my 300 win mag and my 6.5 x 47 lapua. . I am finally starting to play around with different loads for my .338 Lapua. Only did a velocity check on back behind the garage. Good luck with the new set up. IMPORTANT: Please view the special notes by clicking here. Cabelas in Wheeling had the new powder in stock last Saturday. Ok, but just to give you some perspective You must log in or register to reply here. Retumbo was 94g at 2654fps. I myself have been shooting Sierra 300gr with H1000. Enduron Technology extruded powder with the slowest burn rate, IMR 7977 in stock now for sale online near me, is a true magnum cartridge propellant. is essentially the 6.5 mm Swede (btm.) US 869. You are using an out of date browser. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. I set it for a 105% max case fill , and set it for the max rated pressure of 60916 psi . To put that in perspective, the 338 Win. The 33 Nosler case holds 88.3 grains of water. It is recommended for the .25-06, 6.5mm-284, 7mm Rem. SUBSCRIBE TO OUR NEWSLETTER TO STAY UP ON THE LATEST. h4895 Reduced Rifle Load. Full Member. RCBS #14. Supersubes Heathen. YMMV. This website uses cookies to ensure the best experience possible. The 6.5 mm Creedmoor (top.) Inkognito. Consistent performance . Most of my guns will not shoot a tight group without some. More what I was meaning is I think 97 grains of 7977 with 250 grain bullets may be dangerous in bullets other than the 250gr hornady soft point. . Most of the bullets in .338 are better suited for the speeds of the 338 Winchester Magnum, 338-06, or 338 Federal and may fragment if pushed by the 338 Lapua Magnum and impact game at close range. . We appreciate your patience and continued support! Loading density is perfect for magnums, contributing to superb uniformity. SAAMI . Let me know if you want to sell the barrel. Improved Military Rifle IMR 7977. BARREL Twist 1-10" GRS. The IMR brand was first introduced under DuPont in the 1930s. Loading density is perfect for magnums, contributing to superb uniformity. The IMR brand was created under the DuPont Corporation. These loads were shot by Brian Pearce of Wolfe Publishing Co. Resources. CHEAP IMR 7977 AVAILABLE IN STOCK. I'll check with him and PM you if you dont mind. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Mark . Load Specifics. We offer a wide variety of cases and bullets for hunting, sport shooting, target and tactical purposes. Joined Jan 8, 2012 Messages 7 Loading density is ideal for magnums, filling the case nicely at . Near Maximum ! This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. 160 gr. Shellholders: Hornady #43. In 2003, Hodgdon Powder Company acquired the IMR brand bringing these prestigious powders under the umbrella that also includes Hodgdon, Winchester and GOEX. IMR is an acronym for Improved Military Rifle. IMR Enduron 7977 is a slower burn rate in the Enduron family. This demand lead to an incredible 2.5 billion pounds of smokeless propellants being manufactured by DuPont for Allied Forces in World War II. 56.0 grns behind a 100gr NBT got me 0.5" at 100 with 3156 f.p.s. IMR 7977 Enduron . Loading density is perfect for magnums, contributing to superb uniformity. Please help us to improve and report any suggestions via our contact form. IMR 7977 for the 300 win mag . Went to Cabela's Saturday and scored 100 rounds of Hornady 285 grn BTHP. The Best Hunting Bullets for the 338 Lapua Mag. IMR 7977 are couple more options. I've had quickload since 2009 , I think . We place limited powder inventory for sale on a regular basis on our website. I tried 7977 and H1000 without much luck, finally settled on Retumbo with the 285gr ELD-Ms. New customer? Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. The IMR series of handloading powders were the only choice to wring full performance out of rifle calibers. I was amazed at the velocity witch was more that I was supposed to get with 71 grains. Loading density is perfect for the very large magnums, including the 6.5mm and 7mm magnums. IMR Enduron 7977 is a slower burn rate in the Enduron family. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. The COAL stated is this table is according to the SAAMI specification. snoopy happy dance emoji 8959 norma pl west hollywood ca 90069 8959 norma pl west hollywood ca 90069 Very fast flat shooting powder. We continue to prioritize our shipments to our traditional sales channels to maximize powder availability at retailers. Works great in a 7mm Remington Magnum cartridge out of a Winchester Stainless Model 70 using 136 gn Hammer (sledge hammer) bullets. IMR 7977 90.0 MAX. One of the guys may want it. Really consistently accurate results. DuPont had historically been a major supplier of military propellants long before becoming one of the handloaders favorite powders. I worked up a load for my Winchester Model 70 in 270WSM with a 24 inch Bartlein barrel, using 150 Berger VLD's in RP case, 215 primers and 68-70 grains of 7977. Just couldnt get under 0.8 moa. The IMR series of powder is trusted by reloaders all over the world and is suitable for a wide range of reloading applications. Pushing 163gr SCBT 3611 fps (avg.) Really consistently accurate results. for stuff like this it is worth double the price . 14 rds from my 338 Win Mag Rem 700 XCR. 338 Lapua Mag - 265 grain Version 9.0 24" H-S Prec. JavaScript is disabled. Magnum and .338 Lapua. Lee #5. . Hogdon's 2015 annual load manual has data and some good articles on them. Picked up the 7977 for my 280 ack and 300 wm. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. Loading density is perfect for magnums, contributing to superb uniformity. Share your experiences with other customers. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb . Sierra SBT COAL: 3.575 inches; Sierra HPBT MatchKing COAL: 3.680 inches. either expressed or implied is assumed for the use of this data. First used in battle in 1805 by United States naval forces against pirates off the coast of Algiers, DuPont supplied more than 80% of Allied Forces powder needs in World War I. Each of these are still favorites with handloaders today! Please enter your login details below. I tried H1000, IMR7977, and 4891 with 4 different bullet combos. I hope this shows how valuable quickload can be . Shellholders: Hornady #5. I have H1000 which I have tried with no luck. Reloading- What pressure signs do you stop at. IMR 7977. Bullet Weight: ALL. it should give the highest velocity without showing signs of over pressure . 338 lapua 250 grain BTHP. Loading density is perfect for magnums, contributing to superb uniformity. it takes all the guess work out of the "what if " questions we reloaders have . In doing so, we deal with integrity and honesty . It performs admirably in cartridges such as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua, and a variety of others. 338 Lapua Magnum; 338 Remington Ultra Magnum; 338 Winchester Magnum; 338-06 A-Square; 338-378 Weatherby Magnum; 340 Weatherby Magnum; 35 Whelen; 350 Remington Magnum; 375 Flanged; 375 H&H Magnum; 375 Remington Ultra Magnum; 375 Weatherby Magnum; 378 Weatherby Magnum; 40 S&W; 404 Jeffery; 416 Remington Magnum; 416 Rigby; 45 Auto (ACP) 450 Rigby . The slowest burn rate Enduron Technology extruded powder and a true magnum cartridge propellant. I dont have any velocity data, but I did run a couple loads with . Hey guys, does anybody have any IMR 7977- 338LM data? IMR 7977 Enduron 109.2 77.7 5.03 2708 89.3 60000 8519 1.264 ! hope this helps . IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. This is a true magnum propellant yielding outstanding performance in .300 Winchester Magnum, 7mm Remington Magnum and .338 Lapua Magnum. DuPont founded the company. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to then I can get a powder chart from fastest velocity to slowest velocity . Sign up to get updates and access to exclusive promotions. It is slower burning than expected. I picked up some IMR 7977 to try some different bullet/powder combos but Im not finding much data. 2796 88.0 * 2712 86.0 2628 H1000 93.0 MAX. online shopping has now taking into account a long way; it has untouched the quirk consumers and entrepreneurs reach issue today. Imr 7977 Load Data For 338 Lapua If you are looking for Seeley Imr 7977 Load Data For 338 Lapua Yes you see this. Ac c uB ond Lo n g R an g e 0 .7 3 2 7977 IMR Enduron Powder; 4166 . Find load data for IMR 4064 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. 338 Lapua Magnum Reloading Data | Berger Bullets. I just bought the newest update Dec 2016 , it cost about $22 shipped to my door . These loads were shot by Brian Pearce of Wolfe Publishing Co. . Access from your Country was disabled by the administrator. Ramshot Hunter. It may not display this or other websites correctly. With H1000 being harder to find recently I am going to try the 7977 with both the 300Gr and some 250Gr Bergers. Ill be going to 338 LM AI and shoot 300gr Bergers. 2825 91.0 * 2754 89.0 2684 . Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. Ramshot Big Game. It may not display this or other websites correctly. 26.0 inch = 660.4 mm Predicted Data for Indicated Charges of the Following Powders. Lyman #38. Very fast flat shooting powder. Just tagging in, I'm curious what folks say about 7977. for a 338 lapua RL33 is going to be hard to beat . During this time of overwhelming demand, our team is doing everything possible to produce more bullets and ammo than ever before. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. I searched for RL 33 yesterday and they didn't have any, nor Retumbo. I'm using H100 with 300 gr and it's very accurate. to 90 gr. Address: xxl-reloading.com, Gartenweg 9, 83661 Lenggries, Germany. For this reason, the IMR brand powders truly are Legendary products. for a 338 lapua RL33 is going to be hard to beat . I understand this is an old thread, but want to reply anyway. Jun 3, 2010 202 11 Las Vegas . Blog. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 . .338 Lapua Magnum (using Sierra bullets) Warning! IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. For the 338 Lapua, the 300 grainers are too heavy and IMR 8133 is too slow. I have not ran 8133 in 338 yet. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. No reviews found. here is the powder chart . calibers in the late 90's. The N550 is an ideal fit for many of the 30 caliber magnums with lighter bullets, but also useful across a wide range of bore sizes in various shooting disciplines. Comprehensive load data for IMR 7977 Enduron reloading powder und technical specifications for this propellant. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. I use 98 grains in a 31" 300 RUM. Any help and/or guidance would be much appreciated. Hogdon's 2015 annual load manual has data and some good articles on them. Posted by marcus john tweddell on Mar 3rd 2021. have used this powder in a .270 wsm useing the Hornady 150 grain SSTwith the exact load as HODGDON recomends and found it accurate and takeing large red deer out to 500 meters with ease. JavaScript is disabled. They're all having good results. Gun: Savage Model 110 BA; Barrel Length: 26 inches; 1-in-9-inch twist; Case: Lapua; Primer: Federal 215 Large Rifle Magnum; Bullet Diameter: .338 inch; Maximum COAL: 3.681 inches; Maximum Case Length: 2.724 inches; Trim to Length: 2.714 inches. I did see Hodgdons data, but unfortunately they only list the hornady SP bullet. March 27, 2016 Gavin Reloading Blog, Uncategorized 308 Winchester, 338 Lapua, AR-10, AR-15, Gunpowder, IMR 4166, IMR 4451, IMR 4955, IMR 7977, IMR Enduron Ultimate Reloader Moves to the Country Anyone that lives in the city can tell you just how difficult, limiting, and expensive shooting can be when you don't have access to the country. Improved Military Rifle IMR 8133. New Products. Works great in a 7mm Remington Magnum cartridge out of a Winchester Stainless Model 70 using 136 gn Hammer (sledge hammer) bullets. I'm using RL33 with 300 gr berger hunting bullets . I'm not very computer savy , so if I can figure out how to use it , anyone can . Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb . Ramshot Hunter. Used same loads as 4350 and RL17. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. so I checked it out a bit more. IMR Enduron 7977 is a slower burn rate in the Enduron family. To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. You are using an out of date browser. He's not a precision guy and only shoots to 600. Some 7977 load data here. *Recommended Powder C Compressed Load 2 . The Hornady 143-grain ELD-X, Nosler 142-grain ABLR, Berger Classic Hunter, and Berger Hybrid Target bullets all . Bullets. The maxorder quantity of any powder SKU is. Improved Military Rifle IMR 7828 SSC. I have had good luck with 4451 in 6mm Rem with 90 gr BT and 7mm Rem Mag with 150 BT. I love Hodgdon, but I think 97gr is dangerous in most 250 class bullets. Lee #25. 56.0 grns behind a 100gr NBT got me 0.5" at 100 with 3156 f.p.s. For a better experience, please enable JavaScript in your browser before proceeding. JavaScript is disabled. Predicted Data for Indicated Charges of the Following Powders. Soft Point: . Hornady ELD-M; Primer: 215M; Brass: Lapua; Powders: H1000 & IMR 7977; I have messed with seating depth loading all the way up into the lands and then backing my bullet out all the way to thirty . VihtaVuori N150. I have H1000 which I have tried with no luck. .338 Lapua Magnum - Published Manufacturer Loading Data. I love it! I used a 26" bbl , my rifle has a 30" bbl . Bottom line, I like it so far. JavaScript seems to be disabled in your browser. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. Cedar Park, Texas. Submitted Loading Recipes Show all Submitted Loading Recipes Tipstrike Experiment in 7x66 Vom Hofe Preparing 204 Ruger Norma Brass . Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. It'll generate more velocity but it shoots well at 2800. IMR now offers four Enduron powders that cover a broad range of burn rates. After barrel break-in, I ordered up a set of custom whidden dies and started loading the following: Bullets: 300 gr. IMR Enduron 7977 is a slower burn rate in the Enduron family. Thank goodness we do not have a .338 Lapua, as Jim's shoulder would not handle the punishment! Thanks, but I prefer shooting .300 Bergers. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing . We do not take backorders and our Tech Services team cannot take orders via email or phone. For a better experience, please enable JavaScript in your browser before proceeding. Berger Elite Hunter & 285 gr. When will it be back in stock? For more information, go towww.P65Warnings.ca.gov. . Consistent performance . Im hoping to try 250gr berger EH, 285eld-m, and 285 BTHP. Loading density is perfect for magnums, contributing to superb uniformity. I shot five rounds and at 100 yards and I got a group that was less than 3/4 of an inch. here is the Data I found of Hodgdon's site. Hodgdon Powder Company operates following Biblical principles to honor God. Thanks fellas. For example, berger lists 90gr of H1000 as the max charge. US869 is a dense propellant that allows the shooter to use enough powder to create maximum velocities in cartridges such as the 7mm . Magnum, .300 Wby. I am starting with the 250 gr bullets and according to Sierra's load data, my range is from 82.1 gr @2750 fps. I got a buddy in FL that's about due for a barrel change. Loading density is perfect for magnums, contributing to superb uniformity. Charge weights are nearly identical to H1000, which i understand 7977 is supposed to be similar too. imr 7977 for sale IMR powder production dates back more than 200 years, when E.I. RCBS #48. I wouldn't say it's a better alternative - it's on the slow side. Be the first to share your insights. RL33 is working great in my 338 RUM with the 300 EH. 338 lapua 250 grain BTHP. Reactions: Evlshnngns. Loading density is perfect for magnums, contributing to superb uniformity. I was wondering if the latest version of Quick load could work up recommended loads for the 338 Lapua using the Cutting Edge 252 gr. just to show how easy you can gather this info I ran a 338 lapua with a 300 berger elite hunting bullet . N. ntg . Matching Maximum Pressure: 60916 psi, or 420 MPa . I tested some a while back in a .338LM Improved 40 and even compressed loads weren't showing pressure signs. Reloading data for 338 Lapua Magnum. Two are 338 LM. Subscribe to the free newsletter and do not miss any news or promotions. That's suprising. The COAL is measured from the base of the case to the tip of the bullet. Reloading- What pressure signs do you stop at.