Proper crimp / .45 acp S&W 625 JM revolver

[buddhas]

I just purchased a S&W 625 JM revolver ( .45 acp ). What is the proper crimp to put on my reloads ? I will not be using heavy loads. I appreciate all your help and input.
Thanks, buddhas

 

[MifflinKid]

I make no change in crimping for my .45 ACP revolvers with the exception of the 250 grain RNFP cast bullets. Those I roll crimp just as I do when I use them in .45 Colt loads. When roll crimping I use a .45 AR crimp die.

 

[JLDickmon]

if using moon clips, or .45 AutoRim brass, the cartridge headspaces on either the rim or the clip..
so although a taper crimp is typical for a .45 ACP cartridge, roll crimps are possible

 

[jmorris]

I don't do anything different crimp wise for my 625's. If you use 45 GAP brass you get small primers that will allow for lighter trigger pulls with 100% ignition and you don't need tools to moon/demoon. You can also get the small primers with 45 acp Win NT brass but tools are needed to moon/demoon.

 

[jmorris]

Double

 

[PapaG]

My opinion would be that if using moon clips you can either taper or roll crimp. If not using moons and using acp brass you'd need to use a taper crimp. Also, be sure your revolver is bored correctly for rounds without the moon clip as some were not. If using AR brass you can either roll or taper.
I find it just as easy to just taper crimp all of the stuff I shoot in my 625 as I only shoot stuff up to "factory" duplication loads only.

 

[cfullgraf]

I just use a taper crimp with my 625. I use the same ammunition in both my M1911s and 625.

As said, the 625 adds some flexibility in bullet shape and crimping.

For me, paper, tin cans, and other targets of opportunity do not notice the difference.

 

[Walkalong]

I just wish I hadn't sold my 625.

Fortunately I was not foolish enough to sell my Model 1955 Target, and I taper crimp the ammo.