Crimp for Undersized Bullets?
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Crimp for Undersized Bullets?
My crimp has been .469 with .452 diameter bullets while using WCC brass only and has worked fine. Has anyone experienced using a tighter crimp for a slightly undersized bullet of say .4515 and have seen an improvement on accuracy at 50 yards?
Thanks,
Norman
Thanks,
Norman
xmastershooter- Posts : 259
Join date : 2011-06-10
Re: Crimp for Undersized Bullets?
I load a 160 lswc that is.451 crimped at .469 and they are very accurate, i have crimped them as tight as .467 but never saw a difference but have not ransome tested to see which was better.
DavidR- Admin
- Posts : 3032
Join date : 2011-06-10
Age : 70
Location : NRA:Expert, Georgia
Re: Crimp for Undersized Bullets?
If you have a rest the best way is to test. I am not a statistician but to get proper results you may have to have 2-3 10 shot groups of each crimp. I would generate the same load and only change the crimp size. I would also make sure your bullets are as consistent as possible to remove that as a source of error in your experiment. Weight and shape of the base are things to check. 20-30 rounds of each crimp from say .469 down to .463. See what results you get. Also track crono results.
Toz35m- Posts : 264
Join date : 2012-10-17
Location : PDX
Re: Crimp for Undersized Bullets?
I really do not have time to use our Ransom. If I can arm rest them into the 10 ring, I am happy.
(50 yd 10 ring that is. The avatar is TF)
(50 yd 10 ring that is. The avatar is TF)
Jack H- Posts : 2693
Join date : 2011-06-10
Age : 75
Location : Oregon
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