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Rifles, Reloading, Optics, Equipment
Gunsmithing
.308win ---> 30 gibbs
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<blockquote data-quote="J E Custom" data-source="post: 735989" data-attributes="member: 2736"><p>I would recomend Talking to Ted (Shortgrass) and if anyone can tell you what you have it,s him.</p><p></p><p>The problem with the belted mags is that the bolt face has to be opened up, This is not hard to</p><p>do on a Mauser but it does increase the bolt loading. (Larger case head,more square inches for the </p><p>pressure to work on at the same pressures).</p><p></p><p>The 30/06 will have about the same pressures (55,000 to 60,000 psi) as the 300 win mag. but </p><p>having less case head surface, the 30/06 applies less bolt thrust. (Its like the difference between</p><p>a small block and a big block chevy)the same combustion pressure but more piston thrust and </p><p>more crank and bearing loading.</p><p></p><p>Your original idea to stay with the .473 was a good one and the 1 in 10 twist is recomended for all</p><p>30 calibers and mote bullet weights. A 308 win with a 1 in 10 twist will shoot 220 grain bullets well</p><p>so you will be good with anything faster than a 308 win.</p><p></p><p>The newer Short mags and Ultra mags have higher pressures (65,000 to 70,000 Psi) so I would </p><p>not recomend these in an older action of any kind.</p><p></p><p>Also recoil will be very manageable in a 8 to 10 pound rifle.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 735989, member: 2736"] I would recomend Talking to Ted (Shortgrass) and if anyone can tell you what you have it,s him. The problem with the belted mags is that the bolt face has to be opened up, This is not hard to do on a Mauser but it does increase the bolt loading. (Larger case head,more square inches for the pressure to work on at the same pressures). The 30/06 will have about the same pressures (55,000 to 60,000 psi) as the 300 win mag. but having less case head surface, the 30/06 applies less bolt thrust. (Its like the difference between a small block and a big block chevy)the same combustion pressure but more piston thrust and more crank and bearing loading. Your original idea to stay with the .473 was a good one and the 1 in 10 twist is recomended for all 30 calibers and mote bullet weights. A 308 win with a 1 in 10 twist will shoot 220 grain bullets well so you will be good with anything faster than a 308 win. The newer Short mags and Ultra mags have higher pressures (65,000 to 70,000 Psi) so I would not recomend these in an older action of any kind. Also recoil will be very manageable in a 8 to 10 pound rifle. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
.308win ---> 30 gibbs
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