Hunting Forum

I have been reloading for around 5 years for my .40 SW, and I really enjoy doing it.  I had purchased a crimp die a while ago and just never got around to putting in the press until today.  I followed the directions and put a light crimp on the rounds. 

I crimp mine but if you shoot a revolver you need to. But for anything else it up to you.

I have found the taper crimp dies useful on straight case auto pistols. They seem to feed more smoothly and may have more consistent velocities. I especially like them on cast and plated bullets (e.g. Berry's) to prevent bullet set-back when the bullet strikes the feed ramp. Since most of these cartridges headspace on the case mouth, don't over do it, or you'll start getting blown primers and misfires. I have a couple of tight-chambered pistols in 45ACP and 40S&W that virtually demand a taper crimp for reliable chambering. In my experience, the 40 S&W has the most to gain from a taper crimp die.

I am with finepoint for the auto loaders and I roll crimp for my .357

jack

I tried them at the range earlier this week, and they worked great, I would have a few every so often that hangup on cycling before I started crimping them. I shot 50 rounds, and couldn't be happier with how they performed.

I use them on all my rifle setups and my 40 pistol. I like them, they stopped all of mis feeds.

Well i dont crimp my 9mm but just started loading my 44 mag and have deceided to go get a roll crimp die for it I'm not much on the RCBS bullet seating and crimp die I think it will b better to do it in to diffent stages

Posted By 76_michael on 03 Mar 2013 09:49 PM
Well i dont crimp my 9mm but just started loading my 44 mag and have deceided to go get a roll crimp die for it I'm not much on the RCBS bullet seating and crimp die I think it will b better to do it in to diffent stages

IF YOU ARE SMART YOU WILL BUY A LEE FACTORY CRIMP DIE AND NOT A ROLL CRIMP DIE.. THE FACTORY CRIMP DIE IS JUST LIKE THE ONE'S USED BY THE FACTORY AND YOU WILL NEVER HAVE ANY PROBLEMS WITH SCWIB LOADS.. RETIRED USMC SNIPER..

I reload for my 30-06, 300 win mag, .243, 9mm, and .41 mag. and use Lee factory crimp dies on all of them. Never have a problem.

Guess I am not smart and have been just plain lucky for the past 25 years.

jack

Well durn, I guess I'm in the same boat as Jack. Been plumb lucky, 'cause I've been reloadin' for over 60 years---without a roll crimp die or factory crimp die. of course at this time, I'm only reloadin' for 13 seperate cartridges!
Allen

I only roll crimp rounds for revolvers and tube fed lever actions. I'm just now starting load 380 ACP and they get taper crimped. Rounds for bolt actions, Savage 99 etc do not get crimped. Been doing it this way since 1976.

Read good things about the Lee Factory Crimp die but don't own one.

Dale

I guess I'm in the same boat with Jack and Allen. I started reloading in 1967 and I have or do reload for 17 cartridges: .22-250, .257 AI, .270 Win, .30 Carb, .30-30, .308 Win, .30-06, .30 Gibbs, .300 Wby, .375 H&H, .375 RUM, .38 Spl, .357 Mag, .44 Spl, .44 mag, .44 Mag shotshell, and .45 acp. Most of my dies are RCBS and I use their roll crimp dies for .30-30 and .357 and .44 magnum pistol loads. I have a few Lee dies, but I've never seen the need for their Factory Crimp dies. I guess I've also been just really lucky for all of these years.

Most rifle bullet seating dies do put a crimp on the bullet if adjusted right.

Trying to crimp a bullet that does not have a crimping groove or cannelure can result in a collapsed shoulder.

Posted By Cherokee on 04 Mar 2013 04:35 PM

Posted By 76_michael on 03 Mar 2013 09:49 PM
Well i dont crimp my 9mm but just started loading my 44 mag and have deceided to go get a roll crimp die for it I'm not much on the RCBS bullet seating and crimp die I think it will b better to do it in to diffent stages

IF YOU ARE SMART YOU WILL BUY A LEE FACTORY CRIMP DIE AND NOT A ROLL CRIMP DIE.. THE FACTORY CRIMP DIE IS JUST LIKE THE ONE'S USED BY THE FACTORY AND YOU WILL NEVER HAVE ANY PROBLEMS WITH SCWIB LOADS.. RETIRED USMC SNIPER..

Well I bought the lee factory crimp die today gonna give it a try

 

I own Lee factory crimp dies in the 17 calibers I reload. A mixture of actions, lever, bolt, semi auto, revolver, falling block and pump. No issues here and started metalic and shotgun reloading in the late 50's.

I am really confused now. I have only been reloading for two years.
I started with my .300 win mag. Never did a crimp.
Recently I started reloading for my Marlin 336 lever action in .35 Remington.

1. Should I be crimping for either of these???

2. I have ordered some Barnes bullets in 130 grain for my .300 win mag. The Book says to crimp (so I guess I will crimp???? Thoughts ??

As I am really new to reloading Help !!!!


Joe Termite

Joe Termite

Joe, I do load for both of the rifles you mention. I find that the taper crimp, that is built into my seating die, will crimp tight enuff for my Marlins, and Winchesters
Allen

Joe If you set your seating die right , it is crimping your bullets. The problem with some roll crimp dies is if you miss set them they deform the shell, too loose the bullet can move in or out of the case. I use a tapered crimp die and never looked back on the roll crimp the seating die has. Dillon progressive presses all have a spot for the taper die to fit into.