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Long Range Hunting & Shooting
338 Platform Rifle Build
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<blockquote data-quote="highdrum" data-source="post: 1804518" data-attributes="member: 13732"><p>I just had a 338 rum built. 28" proof barrel. Had terminus helios action modded for 4" box. Shooting 300 Bergers @ 3.9" on lands. I ran a ladder of RL33 from 88-102gr, top charge was 2874 fps, and barrel isn't broken in. It showed ejector, but 100g didn't and was 2802, that'll speed up to 2860 or so once broken in. That's faster than most 338 lapuas. The edge will get you another 30-50 fps, maybe. There's nothing wrong with a 338 rum, great cartridge in my opinion. If I did it all over again, I'd probably go 338 norma improved as it gets same velocity in a 26" barrel with a bit less powder, doesn't need a 4" box and lapua brass is freaking great.</p></blockquote><p></p>
[QUOTE="highdrum, post: 1804518, member: 13732"] I just had a 338 rum built. 28" proof barrel. Had terminus helios action modded for 4" box. Shooting 300 Bergers @ 3.9" on lands. I ran a ladder of RL33 from 88-102gr, top charge was 2874 fps, and barrel isn't broken in. It showed ejector, but 100g didn't and was 2802, that'll speed up to 2860 or so once broken in. That's faster than most 338 lapuas. The edge will get you another 30-50 fps, maybe. There's nothing wrong with a 338 rum, great cartridge in my opinion. If I did it all over again, I'd probably go 338 norma improved as it gets same velocity in a 26" barrel with a bit less powder, doesn't need a 4" box and lapua brass is freaking great. [/QUOTE]
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