I load many different cartridges for the contender platform most fall in the range from 17 hornet to 7-30 waters. I don't have any of the big bore magnums so the 30 Herrett and 357 maximum are my top recoiling cartridges. I usually don't load any rounds to there max potential either. If I want more velocity from let's say a 6mm bullet like my 6mm TCU I'm using I would move up to a bigger case like a 6mm Bullberry and maybe a longer barrel.
So with that being said when I'm reloading for my single shot firearms I do not crimp the bullets in place on any of the rounds I use. I try to seat the bullets as close to the throat as possible but never crimp.
Just wonder how some of you shooting single shots load for the rounds you are using. If you crimp or don't crimp your bullets and why. Does crimping improve ignition and performance? Does not crimping casees like the 22 Hornet and 32-20 help extend brass life?
Thank you for you response. Mike
I don't load 32-20, but I do load 22 hornet. I never crimp them. I never crimp any of my Contender loads, including my "boomers". Those include 375 JDJ and 45-70. If I'm shooting cast bullets, I do use the crimp die to take all the bell out of the case mouth after seating the cast bullet. But I don't put any kind of positive crimp on the brass. Just return it to straight so it chambers easily.
From my 45 years experience reloading I have found that all straight walled cartridges can benefit from some form of crimping, you get a more consistent powder burn. My 357 Max left unburnt powder without a crimp. I do not crimp any of my bottle neck rounds I shoot in the Contender/Encore.
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I never crimp bottlenecks but if I'm trying to improve accuracy I will play around with neck tension. On the straight walls I always use an M die so on those anything from straighten the case back up to a varying degree of crimp.
I don't crimp the 30 Herrett but I do the Max. Had several Max barrels and were never real accurate without a crimp. Started using a profile crimp on it and now are dead nuts with all different weight bullets too.
Thank folks for the replies. The 357 max is my latest addiction to my collection. The other straight walled pistol cartridges ( 357 mag and 44 mag ) get a crimp when loading because they serve double duty in revolvers as well as the contender.
Thanks again Mike
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