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The Range
Ammo & Reloading
PPU matchline ammo 7.62x54
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<blockquote data-quote="swampratt" data-source="post: 3337992" data-attributes="member: 15054"><p>When I have a big bore and want to shoot cast using a softer alloy to allow the bullet to bump up quicker has resulted in best accuracy.</p><p>Another thing is the old 30-30 bullets.. many of those had thinner jackets to get them to expand at slower velocities.</p><p>2400 powder in my 30-30 was not a hit I went to Varget or H4350 for cast loads.</p><p>But that was 1800-1900 fps.</p><p></p><p>I also found many groups had fliers.. some looked like shotgun patterns.</p><p>Traced that to neck thickness variation. I turned all necks to .010" and groups got really tight.</p><p></p><p>I found later on with cast loads in my other rifles neck turning to .012" resulted in better groups.</p><p>This is 50-100 yard shooting.</p><p>2400 I save for the 357 Magnum.</p><p>A very favorite cast bullet powder for me is Red Dot.</p><p>My 30-06 loves 11.5gr of the stuff and 170gr lee cast and gas checked bullet 1400fps.</p><p></p><p>I assume these loads you are working up are for 100 yard competition.</p><p>I may one day have a military weapon to play in that arena.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3337992, member: 15054"] When I have a big bore and want to shoot cast using a softer alloy to allow the bullet to bump up quicker has resulted in best accuracy. Another thing is the old 30-30 bullets.. many of those had thinner jackets to get them to expand at slower velocities. 2400 powder in my 30-30 was not a hit I went to Varget or H4350 for cast loads. But that was 1800-1900 fps. I also found many groups had fliers.. some looked like shotgun patterns. Traced that to neck thickness variation. I turned all necks to .010" and groups got really tight. I found later on with cast loads in my other rifles neck turning to .012" resulted in better groups. This is 50-100 yard shooting. 2400 I save for the 357 Magnum. A very favorite cast bullet powder for me is Red Dot. My 30-06 loves 11.5gr of the stuff and 170gr lee cast and gas checked bullet 1400fps. I assume these loads you are working up are for 100 yard competition. I may one day have a military weapon to play in that arena. [/QUOTE]
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