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Rifles, Reloading, Optics, Equipment
Reloading
problem bumping shoulder back
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<blockquote data-quote="dmax1800" data-source="post: 959646" data-attributes="member: 68255"><p>I tried as you suggested, but measured with a head space gauge each time. I also removed the expander stem to eliminate the possibility that it was pulling the shoulder back out. I started at 3/4 turn off kissing and sized, measured and turned 1/8 turn until I was 1/4 turn past kissing. I found that right at kissing I could get 2 thou of shoulder bump. But when I put the expander stem back in, it reverted back to getting only 1 thou. I have already polished the expander ball and it is still shiny, smooth and no crud.</p><p></p><p>I also tried a 270 win RCBS FL die on fire formed brass with 1/4 past kissing. It wouldn't bump the shoulder at all. I tried a 22-250 RCBS die on fire formed brass at 1/4 turn past kissing and got 5 thou of bump.</p><p></p><p>So 2 FL dies don't bump the shoulder and 1 does on the same press.</p><p>I think I will try annealing a few of the 300 brass to see if they have hardened and spring back too much. Beyond that, I'm stumped.</p><p></p><p>Thanks for all the replies and keep them coming. I'm dependent on you guys for some help.</p></blockquote><p></p>
[QUOTE="dmax1800, post: 959646, member: 68255"] I tried as you suggested, but measured with a head space gauge each time. I also removed the expander stem to eliminate the possibility that it was pulling the shoulder back out. I started at 3/4 turn off kissing and sized, measured and turned 1/8 turn until I was 1/4 turn past kissing. I found that right at kissing I could get 2 thou of shoulder bump. But when I put the expander stem back in, it reverted back to getting only 1 thou. I have already polished the expander ball and it is still shiny, smooth and no crud. I also tried a 270 win RCBS FL die on fire formed brass with 1/4 past kissing. It wouldn't bump the shoulder at all. I tried a 22-250 RCBS die on fire formed brass at 1/4 turn past kissing and got 5 thou of bump. So 2 FL dies don't bump the shoulder and 1 does on the same press. I think I will try annealing a few of the 300 brass to see if they have hardened and spring back too much. Beyond that, I'm stumped. Thanks for all the replies and keep them coming. I'm dependent on you guys for some help. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
problem bumping shoulder back
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