Roll crimp for revolvers.
Taper crimp for autos.
Tapercrimp for revolvers when using hollow base wadcutters or when using bullets without a crimp groove, although they will pull out if the recoil is strong.
April 2, 2010, 01:04 AM
Cool that is what I needed to know thanks, now I need to return my die set, I got a taper crimp set.
April 2, 2010, 07:32 AM
I did not know they made a taper crimp "set" for .38/.357. They do sell separate taper crimp dies for .38/.357, but the sets I have seen were all roll crimp, because that is what is needed 90+% of the time.
April 2, 2010, 08:22 AM
918v has nailed it!
April 2, 2010, 11:51 AM
Yes he did, but I still wonder what "set" the OP has that came with a taper crimp die for .38/.357.
April 2, 2010, 11:55 AM
Prolly a Redding set. Redding makes both roll and taper crimp sets. Sorry for the harassment.
April 2, 2010, 12:31 PM
In earlier posts, Caveman4 indicated he got an RCBS starter kit.
Assuming he also got RCBS dies, I would bet dollars to donuts he got a roll-crimp die with it.
All it needs is proper adjustment to roll-crimp.
If you need help with that, report back and someone will tell you how to set up your seating die to crimp properly.
April 2, 2010, 08:58 PM
rcmodel you are right, but I found out the hard way that rcbs makes both for 38/357, and I will report back, going to reload some 38 this weekend so me and the wife can go plinking.
April 3, 2010, 02:17 PM
Taper crimp is not a problem in 38-.357, it's all I use. Unless you are shooting heavy loads in a scandium frame gun taper crimp will prevent movement in the .38-.357. I load up to 170 gr bullet@1300 fps in the .357 and taper crimp with no bullet movement in recoil. Now the .44 mag or heavy .45 long colt may be a different story.
April 3, 2010, 06:46 PM
In earlier posts, Caveman4 indicated he got an RCBS starter kit.Agh. Sounds like RCBS makes both as well as Redding. Learned sumthin'. Of course, I haven't researched .38.357 die sets in many years.
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