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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Mega
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<blockquote data-quote="PapaSmurff" data-source="post: 2841441" data-attributes="member: 118512"><p>After all the testing I've done so far (around 200 rounds) I think I came up with a cool idea for this cartridge that I don't think anyone else has tried just yet perhaps. My Ruger rifle will handle an overall cartridge length in the high 3.4" range. So I tried some Cutting Edge .338 caliber 250 grain single feed Lazer bullets in it. Even though they're single feed, the cartridge overall length that I found best accuracy at with them is 3.445". Since they're single feed bullets, most of the bullet is forward of the seal tight band, not behind it so the bullet shank doesn't protrude down into the case farther than the neck shoulder junction for the boat tail/ogive junction of the bullet; therefore not taking up precious powder capacity. Anyways, I finally have consistent 1/3"-.4" accuracy results group after group at ranges up to 725 yards with 72.0 grains of Reloder 26 and a cartridge overall length of 3.445" yielding a velocity of 2,700 fps and single digit ES with the single feed 250 grain Cutting Edge Lazers. I can easily load them up to around another 75-100 fps by adding a couple more grains of powder but the accuracy wasn't consistent at velocities above 2,700 fps. The Lazers look awesome when loaded up in the the 338 Mega case too! Posting several pictures below: picture of some of the Lazers loaded up for testing, picture of my sight in single head shot on 200 yard target, grouping of 3 shots on my 300 yard target that measures around 1" center strike to center strike, and also another 3-shot group on my 725 yard target that measures 2 3/4". I think I've got a pretty good feel for the 338 Mega now and if anybody is interested in building one and has any questions then please feel free to PM me and I'll be happy to answer. It is a wonderful cartridge indeed for anyone wanting a 338 with true long range performance potential, but not wanting all the extra muzzle blast, recoil, heavier weight, longer action requirements, etc. of the 338 Lapua. Pictures from todays described above progress are posted below.</p></blockquote><p></p>
[QUOTE="PapaSmurff, post: 2841441, member: 118512"] After all the testing I’ve done so far (around 200 rounds) I think I came up with a cool idea for this cartridge that I don’t think anyone else has tried just yet perhaps. My Ruger rifle will handle an overall cartridge length in the high 3.4” range. So I tried some Cutting Edge .338 caliber 250 grain single feed Lazer bullets in it. Even though they’re single feed, the cartridge overall length that I found best accuracy at with them is 3.445”. Since they're single feed bullets, most of the bullet is forward of the seal tight band, not behind it so the bullet shank doesn’t protrude down into the case farther than the neck shoulder junction for the boat tail/ogive junction of the bullet; therefore not taking up precious powder capacity. Anyways, I finally have consistent 1/3”-.4” accuracy results group after group at ranges up to 725 yards with 72.0 grains of Reloder 26 and a cartridge overall length of 3.445” yielding a velocity of 2,700 fps and single digit ES with the single feed 250 grain Cutting Edge Lazers. I can easily load them up to around another 75-100 fps by adding a couple more grains of powder but the accuracy wasn’t consistent at velocities above 2,700 fps. The Lazers look awesome when loaded up in the the 338 Mega case too! Posting several pictures below: picture of some of the Lazers loaded up for testing, picture of my sight in single head shot on 200 yard target, grouping of 3 shots on my 300 yard target that measures around 1” center strike to center strike, and also another 3-shot group on my 725 yard target that measures 2 3/4”. I think I’ve got a pretty good feel for the 338 Mega now and if anybody is interested in building one and has any questions then please feel free to PM me and I’ll be happy to answer. It is a wonderful cartridge indeed for anyone wanting a 338 with true long range performance potential, but not wanting all the extra muzzle blast, recoil, heavier weight, longer action requirements, etc. of the 338 Lapua. Pictures from todays described above progress are posted below. [/QUOTE]
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