Bullet-VS-False shoulder fire forming

[bozo699]

Wayne,
A long time back, I asked Tony Boyer if having his chambers set for a 1.500 max case length (to minimize the gap at the end of case necks) had yielded any advantage. He said that it had not. Much later, after listening to Jack Neary talk about the importance of frequent trimming, and that he sees no reduction in accuracy with a .035 gap at the end of the case neck, I have abandoned another tighter/closer is better position. Back in the corner, where the neck part of the chamber ends, is that hardest place to reach and keep clean with normal cleaning methods. On the other hand, as we get closer to the middle of the neck, routine cleaning is more likely to keep up with the rate of fouling. If the gap doesn't matter, and farther back is cleaner, if we trim very often so as not to have cases grow to a length that overlaps fouling laid down when shorter cases were fired, I think that we are good to go, and better off than if we are closer to the corner, with a narrower gap. As always, opinions are probably worth what they cost.

Boyd

Boyd,
Your opinions mean more to me then most peoples so called facts, I have to go to work now but want to talk more about this, will call you maybe later tonight if my bullet makers do there job
Wayne.

 

[johara1]

Boyd, I do know of what you said about Jack and Dave runs ,015 ,he said strange thing happen some times with less. But the point is blow length is and the change of length of brass,If your is chamber is 1.570 and your brass is 1.545 or less and not uniform. I did have the reamer made shorter 1.560 that the new shorter brass gives you some wiggle room on case length, The reamer that was 1.560 is 1.565, it's not a perfect world........jim