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No crimp groove jacketed 38 cal 158 in a revolver?

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No crimp groove jacketed 38 cal 158 in a revolver? Empty No crimp groove jacketed 38 cal 158 in a revolver?

Post by 14S&W Thu Oct 03, 2024 1:17 am

Raven Rocks Precision has some .38 cal 158 grain JHP’s at a good price.  Has anyone tried bullets like this in .38 Special/.357 magnum?  My primary concern was them moving out of the case enough to lock up the revolver.  Information or experience with this type bullet would be appreciated.  Also not looking to use at max velocity, just mid range loads.  I would be using a taper crimp.  

https://ravenrocksprecision.com/38-cal-357-158gr-jhp-bullets-brand-new-updating/

14S&W

Posts : 41
Join date : 2023-01-12

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Post by Steve B Thu Oct 03, 2024 10:35 am

I'm of the opinion that the roll crimp most frequently specified for use on revolver cartridges is antiquated and not necessary.  With sufficient neck tension and a taper crimp the bullet won't move at all.

Steve B

Posts : 632
Join date : 2011-06-16
Location : Elkhart, IN

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Post by 14S&W Mon Nov 04, 2024 9:38 pm

Thanks for the information Steve B.  I have some once-fired brass and the neck tension should be good.

14S&W

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Post by 243winxb Tue Nov 05, 2024 9:10 am

Neck tension-  Measure outside case diameter, before & after bullet seating. 

After seating, OD should increase by .002" as a minimum.  Check bullet movement of last unfired round in chamber. Has COL changed?

If yes, increase bullet hold using Lee "Undersize die"  or adjust the expander, smaller. 

Big magnums have .004"  neck tension/ bullet hold.
243winxb
243winxb

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Age : 80
Location : USA

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Post by 14S&W Tue Nov 05, 2024 9:29 am

No matter how long you have been reloading and shooting there is still more to learn.

14S&W

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Post by RedBand Thu Nov 14, 2024 3:25 pm

have you ever seen a cannelure on the 158 grain fmj/truncated cone bullets used for 357 magnum?

NOPE... 

NEVER heard of bullets coming out from recoil..

RedBand

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Join date : 2024-10-11

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