Originally Posted by
Scott Gags
This post has got me thinking a bit. I neck size with a Lee collet die and am on my 11th sizing. I have had to full length size once because of tight chambering after 7 firings. Does neck sizing reduce the case streching to the point that case head separation is a non issue?
I believe it still happens but much slower. But I never load any of my rounds 11 times either. I usually get tight chambering with collet sized necks after 3 to 5 firings.
I have been just looking at the primer pockets so far to determine if the cases are OK and they are still tight. I have never had a case separation but I dont reload that much. My loads are pretty hot and after reading these posts I am leaning toward just pitching the brass because I still dont have a handle on how to really know it the cases are weakened.
I guess I am just thinging maybe time to not push my luck after getting 11 reloads.
I generally am not able to reach anything after 5 or so loads. Either I start getting loose primers, or an ocassional cracked neck. I do anneal anymore and that helped the necks.