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Best type of crimp for 44mag?

Discussion in 'Handloading and Reloading' started by Hiaboo, Feb 26, 2010.

  1. Hiaboo

    Hiaboo Well-Known Member

    I'm in need of a crimp for my .44 loads and I'm not sure of what I should get these days there's quite a bit of a selection.

    I was just going to go with a lee FCD and be done but I'm just curious what's the input on that.
  2. rcmodel

    rcmodel Member in memoriam

    Standard reloading dies do a perfectly fine revolver crimp with the seating dies built-in roll crimp.

    It seems to me Lee's collet squasher crimp does a number on the cases that will probably shorten their life before case neck cracks develop.

    But I'm just guessing because I don't find a need for them.

  3. Walkalong

    Walkalong Moderator

    This crimp and this crimp were done with an RCBS seater die with a built in roll crimp. I am not a fan of the LEE FCD for pistols.
  4. UltimateReloader

    UltimateReloader Well-Known Member

    Are you doing separate seat and crimp, or combined?
  5. rcmodel

    rcmodel Member in memoriam

    I do it in one operation, especially with cast bullets.

    All of them have a deep beveled crimp groove, so the case mouth is clear of the bullet shank before much crimping begins to take place.

    Thus, no lead shaving as you can get on lead auto pistol bullets with no crimp groove when seating and crimping in one operation.

  6. zxcvbob

    zxcvbob Well-Known Member

    I load .45 Colt, include "Ruger" loads that are the same power as .44 Magnums. I just use the roll crimp built into the Lee seating die. I bought a Lee FCD to try to fix a problem I was having with a certain bullet that I bought, but it didn't help. (I needed more neck tension not a tighter crimp, so I "neck sized" the cases with the base of a .30-06 die and that fixed the problem.) I seat the bullets and crimp the cases in one step, and the FCD just collects dust.
  7. kelbro

    kelbro Well-Known Member

    Lee FCD on a cast bullet can squish them which can cause leading.
  8. Hiaboo

    Hiaboo Well-Known Member

    I should have mentioned that my RCBS dies do NOT have a crimp.. or I'm completely missing it -- I have 3 dies, one sizing, one belling/deprimer, and seater.

    I picked up these dies from a older gentlemen they are the older RCBS dies, they come in the boxes with the "t" closures, not the snap closures the new ones have..

    I am away from my dies currently so I can't post a picture.

    It looks like at this point that the roll crimp seems to be the best way to go.
  9. zxcvbob

    zxcvbob Well-Known Member

    I have a set of older steel RCBS .45 Colt dies, and the seating die does a nice roll crimp if you adjust it right. You are probably not screwing it down far enough. Try it without a bullet.
  10. rcmodel

    rcmodel Member in memoriam

    I agree.
    ALl older RCBS dies do have a roll crimp or taper crimp capability depending on caliber.

    Your .45 Colt dies most certainly will roll crimp.

    Take a sized case and run the ram up.
    Now screw the seating die down until it contacts the sized case.
    Now seat a bullet to the crimp groove.
    Back off the seating stem and screw the die down another 1/16" - 3/32" more and it will roll crimp the case.

    Now you can re-adjust the seating stem to contact the bullet again and you are in business.

  11. Walkalong

    Walkalong Moderator

    Sometimes in one step, and sometimes separately. Any bullet with a good crimp groove or cannelure can be easily seated and crimped in the same step.
  12. Hiaboo

    Hiaboo Well-Known Member

    Hmph, alright.

    The instructions w/the dies didn't mention anything about that.
    Last edited: Feb 26, 2010
  13. zxcvbob

    zxcvbob Well-Known Member

    Take a resized case, put it under the crimping/seater die without expanding it first and without a bullet. Run the die down until it is snug against the case mouth, then screw it down another 1/4 turn for good luck. (this is very similar to my method of adjusting an expander die, except I use a fired unsized case for that.)

    That's your rough set-up for any seating&crimping die; doesn't matter whether it's a roll crimp or taper crimp. It might not be exactly right but it'll get you close, then you can make your fine adjustments using an expanded case.

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