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Rifles, Reloading, Optics, Equipment
Reloading
7mm rem mag load help?
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<blockquote data-quote="RT2506" data-source="post: 1845624" data-attributes="member: 10178"><p>You did not state if this was NEW or previously fired cases. If previously fired how much are you sizing them? About 39 years ago with my first belted mag which was a Rem. 700 in 7 Rem. mag. I started out with new cases. I wanted to shoot the 139 Hornady interlock and use AA3100 powder. Best group I could get was right at 2" no matter what I did. All the time I was using the NEW cases which I would run through a full length sizer to make sure the neck was right. I thought I had a lemon of a rifle. I ran out of new cases so I started using once fired cases. A friend suggested to me to use a candle and smoke the neck and shoulder of a case and adjust the full length die so it just sized the neck and barely bumped the shoulder. The smoke area let me know how much was sized. I gave this a try and loaded up the best load I had found so far. First shot was on paper, second shot still only one bullet hole in target. I thought great now this rifle will not even put two in the target. Third shot still only one hole in the target. Forth shot still only one hole but it kind of looks a little bit larger. Shot five and still one hole but yes that hole does look a bit larger. Went to the target and BINGO. Five shots in about a 40 cal. size hole. Turned out that with a previously fired case size part way you could just about fill a case up to the starting of the neck with AA3100 and shoot any bullet from 139 to 160 gr and it would shoot bug holes. So you never know what little thing will turn a frog into a prince.</p></blockquote><p></p>
[QUOTE="RT2506, post: 1845624, member: 10178"] You did not state if this was NEW or previously fired cases. If previously fired how much are you sizing them? About 39 years ago with my first belted mag which was a Rem. 700 in 7 Rem. mag. I started out with new cases. I wanted to shoot the 139 Hornady interlock and use AA3100 powder. Best group I could get was right at 2" no matter what I did. All the time I was using the NEW cases which I would run through a full length sizer to make sure the neck was right. I thought I had a lemon of a rifle. I ran out of new cases so I started using once fired cases. A friend suggested to me to use a candle and smoke the neck and shoulder of a case and adjust the full length die so it just sized the neck and barely bumped the shoulder. The smoke area let me know how much was sized. I gave this a try and loaded up the best load I had found so far. First shot was on paper, second shot still only one bullet hole in target. I thought great now this rifle will not even put two in the target. Third shot still only one hole in the target. Forth shot still only one hole but it kind of looks a little bit larger. Shot five and still one hole but yes that hole does look a bit larger. Went to the target and BINGO. Five shots in about a 40 cal. size hole. Turned out that with a previously fired case size part way you could just about fill a case up to the starting of the neck with AA3100 and shoot any bullet from 139 to 160 gr and it would shoot bug holes. So you never know what little thing will turn a frog into a prince. [/QUOTE]
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7mm rem mag load help?
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