9mm Taper Crimp Die reccomendations?

[John_K]

I'm just getting back into handloading pistol calibers (9mm and .45ACP). I picked up a Hornady 3 die set (9mm Luger-9x21), and didn't realize it had a roll crimp seating die.

I set up the seating die just a few thou shy of MAX OAL (checked the fit in my barrels), and the crimp just before the point where it started to roll in.

I loaded up some Berry's Plated 124gr HP ontop of 4.1-4.4gr Bullseye. I found the best groups (ragged hole ~ 7 yds, offhand) to be with 4.4gr. I also noticed that on a few of the rounds I could get setback with a little force on the bench.

I pulled a few projectiles after seating and I think I may be getting a bit of spring-back of the brass and a slight swaging of the projectile.

I adjusted the crimp die a tighter (and readjusted the seating die) and now I've gotten rid of the setback, but I'm getting bulges in the cases and having feeding issues.

Can anyone recommend a quality taper crimp die I can run in the 5th position of my progressive to get a GOOD SOLID crimp without swaging the soft plated projectile?

Or should I switch to their .357sig projectile (.001 larger in diameter IIRC), or just bite the bullet and pay extra for jacketed projectiles?

Thanks,

John K

[joe i]

I use and like Dillon's taper crimp dies. I like that you can remove the insert to clean it, and reassemble without losing the die's settings.

What's the i.d. of a case that's been run through your sizer die? And what are your Berry's o.d.? I have a batch of their bullets (.380) here now that mike .001 under spec.

As far as running a larger bullet, have you ever slugged your pistol's barrel? My Berettas all slug at .3575 and really need a .358 minimum boolit.

Just some random thoughts for you.

[Errokk]

I myself use the Hornady taper crimp 3 die set with no set back issues at all in 9mm Luger. Would recommend the taper crimp set from Hornady. This result was using Precision Delta 124gr jacketed projectiles.

[Rattlesnake Charlie]

I use Lee taper crimp (not factory crimp) die for my 9mm and .380. Works fine, even after 10K plus. Never any setback in numerous different pistols.

[Bwana]

I use Lee taper crimp (not factory crimp) die for my 9mm and .380. Works fine, even after 10K plus. Never any setback in numerous different pistols.

+1 to this sugestion

[r1kk1]

I use and like Dillon's taper crimp dies. I like that you can remove the insert to clean it, and reassemble without losing the die's settings.

What's the i.d. of a case that's been run through your sizer die? And what are your Berry's o.d.? I have a batch of their bullets (.380) here now that mike .001 under spec.

As far as running a larger bullet, have you ever slugged your pistol's barrel? My Berettas all slug at .3575 and really need a .358 minimum boolit.

Just some random thoughts for you.

+1 on Dillon crimp die

Take care

r1kk1

[doulos]

I like both the Dillon and Redding taper crimps

[John_K]

Using my cheap (but repeatable) digital caliper for a comparison:

Sig barrel slugs @ .3545-.355

Berry's 9mm OD .354

Berry's .357Sig OD .355

Brass (crimp die set just before it starts to roll the crimp) ID .347-.355, OD .3735-.374 (.379 OD @.1 back from crimp)

9mm = setback

.357sig = no setback

With plated bullets, how tight of a projectile/bore fit is "usually safe"?


Thanks,

John K

[MtGun44]

+1 on What Rattlesnake Charlie said.

Bill