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Rifles, Reloading, Optics, Equipment
Reloading
Full length size
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<blockquote data-quote="bigedp51" data-source="post: 1459462" data-attributes="member: 28965"><p>You are correct using a feeler gauge can prevent the case from moving in the shell holder and letting the case be self centering in the die. It is much better to lap the top of the shell holder a few thousandths at a time until you get the correct amount of shoulder bump.</p><p></p><p>Another option is to buy a different name brand die and see how that works. But the cheapest method is to just lap the shell holder on a piece of glass with fine wet and dry sandpaper and a little oil.</p><p></p><p>I bought my Rockchucker press in 1973 and there is a little slop in the linkage. So I prefer to have the die make hard contact with the shell holder with press cam over. This gives more uniform shoulder location after sizing, than with a air gap between the die and shell holder.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1459462, member: 28965"] You are correct using a feeler gauge can prevent the case from moving in the shell holder and letting the case be self centering in the die. It is much better to lap the top of the shell holder a few thousandths at a time until you get the correct amount of shoulder bump. Another option is to buy a different name brand die and see how that works. But the cheapest method is to just lap the shell holder on a piece of glass with fine wet and dry sandpaper and a little oil. I bought my Rockchucker press in 1973 and there is a little slop in the linkage. So I prefer to have the die make hard contact with the shell holder with press cam over. This gives more uniform shoulder location after sizing, than with a air gap between the die and shell holder. [/QUOTE]
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