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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
25-08 or 25-284
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<blockquote data-quote="VinceMule" data-source="post: 2808172" data-attributes="member: 122164"><p>250 Savage AI and 25x47 Lapua fit mag constraints best of all choices on short actions. Don't forget to remember leade growth and your being able to seat the bullet out to maintain the bullet jump that the load likes in order to avoid barrel replacement. Powders that burn hot in the Heat Index Chart make throat geometry design along with action choice even more critical allowing you to seat bullets out as leade growth dictates.</p><p></p><p>Wyatt's magazine boxes installed by the gunsmith are money well spent, extending your OAL .125 on Remingtons.</p><p></p><p>On the 25/284, the long bullets will have to be seated DEEP in the case to accommodate the mag length on a short action, which will take up a lot of powder space and may also do wonky things to pressure, the first lesson I learned. </p><p></p><p>If you do some advance development in the 25/284, seat the intersection of the boat tail and bullet shank right at the shoulder neck junction of the case, will you will get a "clue" as to the length of the mag box(action length) that you will need. This simple trick could have saved me over $3000 on past builds before an old German gunsmith(Joe Wagner) took me under his wing showing me some of the simple basics.</p><p></p><p>Please do not make the mistakes I did on 4 Hart barrel builds in the 6 & 25- 284's on Remington Length short actions, ESPECIALLY if you are going to be shooting the 133g Bergers. I am a hunter and need rounds in the magazine. Leade growth on anything based on a 284 case is FAST, make your plans accordingly. Lots of pitfalls in designing xyz/284's where you want super accuracy for 1200 rounds(pipe dream) on $650-$800 barrel jobs. JUST imagine when accuracy on my rigs had opened up from 1/4-3/8" to 1" due to leade growth in 600 rounds where I could no longer get the bullet jump that the accuracy node liked!</p></blockquote><p></p>
[QUOTE="VinceMule, post: 2808172, member: 122164"] 250 Savage AI and 25x47 Lapua fit mag constraints best of all choices on short actions. Don't forget to remember leade growth and your being able to seat the bullet out to maintain the bullet jump that the load likes in order to avoid barrel replacement. Powders that burn hot in the Heat Index Chart make throat geometry design along with action choice even more critical allowing you to seat bullets out as leade growth dictates. Wyatt's magazine boxes installed by the gunsmith are money well spent, extending your OAL .125 on Remingtons. On the 25/284, the long bullets will have to be seated DEEP in the case to accommodate the mag length on a short action, which will take up a lot of powder space and may also do wonky things to pressure, the first lesson I learned. If you do some advance development in the 25/284, seat the intersection of the boat tail and bullet shank right at the shoulder neck junction of the case, will you will get a "clue" as to the length of the mag box(action length) that you will need. This simple trick could have saved me over $3000 on past builds before an old German gunsmith(Joe Wagner) took me under his wing showing me some of the simple basics. Please do not make the mistakes I did on 4 Hart barrel builds in the 6 & 25- 284's on Remington Length short actions, ESPECIALLY if you are going to be shooting the 133g Bergers. I am a hunter and need rounds in the magazine. Leade growth on anything based on a 284 case is FAST, make your plans accordingly. Lots of pitfalls in designing xyz/284's where you want super accuracy for 1200 rounds(pipe dream) on $650-$800 barrel jobs. JUST imagine when accuracy on my rigs had opened up from 1/4-3/8" to 1" due to leade growth in 600 rounds where I could no longer get the bullet jump that the accuracy node liked! [/QUOTE]
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