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<blockquote data-quote="swampratt" data-source="post: 3257353" data-attributes="member: 15054"><p>Small pistol and large pistol primers in pistol cases make No difference in accuracy in my testing.</p><p>I did notice a tiny bit less velocity variance with small primers but on paper I noticed nothing.</p><p>That was 45acp.</p><p></p><p>If you look at 357 magnum it uses small primers but some were made many moons ago with large primers.</p><p>One is not better than the other.</p><p>But and there are always Buts.</p><p>The .308 Lapua case is offered in small and large primer and the small primer can take more pressure or more rounds fired before the primer pocket gets loose.</p><p>I have fired and full length sized after each firing a single Lapua .308 case with large primer and it went over 45 reloads before I got a case neck split. Loads were just around 42gr Varget and 165gr bullet with cci 200 primer.</p><p></p><p>I reloaded CCI NR aluminum 45acp cases and I could get 9 reloads before the primer pocket started seeping.</p><p>Reloading is fun.</p><p>And addictive.</p><p>I can't answer the 45/70 question as I do not reload for that.</p><p>I would assume you can use the load data for your Henry as most load data when they speak of certain rifles is because</p><p>some rifles are not built as strong as others.</p><p>So powder loads are reduced.</p><p>Or a powder with a different pressure curve is used.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3257353, member: 15054"] Small pistol and large pistol primers in pistol cases make No difference in accuracy in my testing. I did notice a tiny bit less velocity variance with small primers but on paper I noticed nothing. That was 45acp. If you look at 357 magnum it uses small primers but some were made many moons ago with large primers. One is not better than the other. But and there are always Buts. The .308 Lapua case is offered in small and large primer and the small primer can take more pressure or more rounds fired before the primer pocket gets loose. I have fired and full length sized after each firing a single Lapua .308 case with large primer and it went over 45 reloads before I got a case neck split. Loads were just around 42gr Varget and 165gr bullet with cci 200 primer. I reloaded CCI NR aluminum 45acp cases and I could get 9 reloads before the primer pocket started seeping. Reloading is fun. And addictive. I can't answer the 45/70 question as I do not reload for that. I would assume you can use the load data for your Henry as most load data when they speak of certain rifles is because some rifles are not built as strong as others. So powder loads are reduced. Or a powder with a different pressure curve is used. [/QUOTE]
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