Crimping 280AI and others....

[CoronaCA]

Hey all, are there any thoughts pro or con on using a Lee crimping die on a bullet without a cannelure? I have read pros and cons as well be careful and don’t ever do it. I am not using dies with bushings, just the standard hornady die set.

N

 

[JD338]

The only cartridges I crimp are 44 Rem Mag and 45-70. The 44 because I load H110 and a heavy roll crimp is recommended. The 45-70 (44 Rem Mag too) are shot in Marlin lever action tube magazines. Everything else, including the big magnums, 338 RUM and 416 Wby, are not crimped.

JD338

 

[Anonymous]

I've always had good results with just plain old Hornady seating dies. The only time I crimp is loading bullets with a cannelure.

 

[mjcmichigan]

I use them and like them a lot.
223rem, 22-250, 3006: 300WSM.
I haven’t tried them on anything bigger.

In pistol, I use it on 44’s and 357/38’s.


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[Elkman]

I also only crimp for my 45/70 lever gun. Used to for a couple of pistol cartridges but got rid of them. I don't believe its necessary , and after 60 years of reloading for multiple cartridges still see no need. Just my .02

 

[C.Smith]

I would ask why crimp them? Only thing I can think of is to have more consistent neck tension, maybe.

Corey

 

[SJB358]

I crimp revolver and auto loader ammo along with my lever gun stuff but never saw it help or hurt my rifle stuff. Tried it a bit and nothing really changed. It will help with neck tension if that is a problem though.

 

[desertcj]

I have crimped with the Lee die on rounds that were neck sized and had light neck tension. That was with a 7mm-08. With full length resizing, I dont think its necessary but I cant say at this point if it helps, hurts or indifferent.