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Rifles, Reloading, Optics, Equipment
Reloading
Larry Willis collet die
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<blockquote data-quote="cape cove" data-source="post: 3033114" data-attributes="member: 95503"><p>The reason I ask is because there are alternatives sometime to the Willis die. The bulge just north of the belt comes about often because the chamber in your die and the one in your rifle don't match up good. Often the chamber in your rifle is longer than the one in the die. What happens is you set-up your sizing die to headspace on the shoulder and give you a .002-.003 bump. Being that your die chamber is longer you get the proper bump but leave the portion of the case just ahead of the belt unsized. With a few firings this portion expands from not being sized and your bolt becomes hard to close and also effects extraction. If you screw your sizing die down to size this portion of the case then your bolt troubles go away but you now have much more shoulder bump than necessary and your case life goes to pot. Here is where a different die comes in and a lot of time will fix this issue. For example if you were having chambering trouble with your 338 mags and you had ( or know someone who has to try) a 340 Weatherby or maybe even a 300 Weatherby FL die ( small base would be even better) you could adjust this die in your press to contact your shell holder + 3/4 of a turn then run your 338 case all the way in the die and this may size that area of the case that is giving you trouble with no worry of bumping your shoulder too much. This does not work in every instance but from what I have experienced it works often and is a much cheaper alternative than the Willis die.</p></blockquote><p></p>
[QUOTE="cape cove, post: 3033114, member: 95503"] The reason I ask is because there are alternatives sometime to the Willis die. The bulge just north of the belt comes about often because the chamber in your die and the one in your rifle don't match up good. Often the chamber in your rifle is longer than the one in the die. What happens is you set-up your sizing die to headspace on the shoulder and give you a .002-.003 bump. Being that your die chamber is longer you get the proper bump but leave the portion of the case just ahead of the belt unsized. With a few firings this portion expands from not being sized and your bolt becomes hard to close and also effects extraction. If you screw your sizing die down to size this portion of the case then your bolt troubles go away but you now have much more shoulder bump than necessary and your case life goes to pot. Here is where a different die comes in and a lot of time will fix this issue. For example if you were having chambering trouble with your 338 mags and you had ( or know someone who has to try) a 340 Weatherby or maybe even a 300 Weatherby FL die ( small base would be even better) you could adjust this die in your press to contact your shell holder + 3/4 of a turn then run your 338 case all the way in the die and this may size that area of the case that is giving you trouble with no worry of bumping your shoulder too much. This does not work in every instance but from what I have experienced it works often and is a much cheaper alternative than the Willis die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Larry Willis collet die
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