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The Range
Ammo & Reloading
What did you do in the reloading room today?
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<blockquote data-quote="Dumpstick" data-source="post: 3969261" data-attributes="member: 41653"><p>Loaded some 7.65 Browning (32 Auto) for the first time.</p><p></p><p>.313" 78-grain coated Missouri Bullets RN, 2 gr Promo, GFL brass.</p><p></p><p>Dang things wouldn't chamber in a Beretta M82. Barely chambered in a Tanfoglio GT32. They did chamber with a bit of thumb push, and I fired 2 rounds.</p><p></p><p> I did some measuring and some research. Saami states max diameter is .336" at the crimp, and .337 at the head. The chamber size is .339".</p><p> I gauged my reloads, came up with .336 at the crimp - max allowable, and .338 body. Apparently, the Beretta has a tight chamber. What to do...</p><p></p><p>I want to use the .313 bullets, they are within spec. So I measured the walls of the brass. </p><p></p><p>There's the problem. The GFL brass walls mic at .014 - .016 thick. I ain't no math specialist, but a .313 bullet, plus .015 twice (for the neck brass walls) comes to something like .343.</p><p></p><p> A .343 cylinder probably won't fit in a .339 hole (Saami chamber).</p><p></p><p> I measured the walls of some new Starline brass: .011". .011 twice is .022, plus .313 makes .335. That should work in a .339 hole, right?</p><p></p><p>Seems I can't use the GFL brass with the .313 bullets. Either size them down or maybe buy some smaller plated bullets.</p></blockquote><p></p>
[QUOTE="Dumpstick, post: 3969261, member: 41653"] Loaded some 7.65 Browning (32 Auto) for the first time. .313" 78-grain coated Missouri Bullets RN, 2 gr Promo, GFL brass. Dang things wouldn't chamber in a Beretta M82. Barely chambered in a Tanfoglio GT32. They did chamber with a bit of thumb push, and I fired 2 rounds. I did some measuring and some research. Saami states max diameter is .336" at the crimp, and .337 at the head. The chamber size is .339". I gauged my reloads, came up with .336 at the crimp - max allowable, and .338 body. Apparently, the Beretta has a tight chamber. What to do... I want to use the .313 bullets, they are within spec. So I measured the walls of the brass. There's the problem. The GFL brass walls mic at .014 - .016 thick. I ain't no math specialist, but a .313 bullet, plus .015 twice (for the neck brass walls) comes to something like .343. A .343 cylinder probably won't fit in a .339 hole (Saami chamber). I measured the walls of some new Starline brass: .011". .011 twice is .022, plus .313 makes .335. That should work in a .339 hole, right? Seems I can't use the GFL brass with the .313 bullets. Either size them down or maybe buy some smaller plated bullets. [/QUOTE]
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