Separate Crimp Die Necessary?
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RoyDean
rich.tullo
SingleActionAndrew
faraim
chiz1180
John Dervis
james r chapman
Olde Pilot
12 posters
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Separate Crimp Die Necessary?
When I first started reloading, some "experts" advised to seat bullet and then crimp in separate operations. Supposed to get better results somehow. Is this really beneficial?
Olde Pilot- Posts : 315
Join date : 2015-07-27
Location : Apopka Fl (Central Fl)
james r chapman- Admin
- Posts : 6382
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Al, BE Mike, LenV, PhotoEscape and oldeyes like this post
Re: Separate Crimp Die Necessary?
That's what I was told years ago and have always done it that way. I don't think the combo seat/crimp dies have enough adjustment built in to do both jobs accurately.
John
John
John Dervis- Posts : 542
Join date : 2012-08-29
Age : 55
Location : Sheridan, Il.
Re: Separate Crimp Die Necessary?
Using a separate crimp die makes both the seating depth and crimp adjustments easier.
chiz1180- Posts : 1523
Join date : 2019-05-29
Location : Ohio
troystaten likes this post
Re: Separate Crimp Die Necessary?
From another Olde Pilot, I’ve always crimped separately. With soft lead bullets I convinced myself it deformed the bullets less.
faraim- Posts : 99
Join date : 2020-06-10
Re: Separate Crimp Die Necessary?
Two shalt be the number of steps for seating and crimping, no more, no less. Four steps is right out. Amen
From The Book of Armaments 2, 9-21
From The Book of Armaments 2, 9-21
SingleActionAndrew- Admin
- Posts : 676
Join date : 2019-11-19
Location : IL, USA
fc60, troystaten, Pinetree and Thin Man like this post
Re: Separate Crimp Die Necessary?
Yes for two reasons
1) Crimp separately does a better job at crimping
2) If you are using different bullet types on a regular basis having a dedicated seater for each bullet type (200gn, 185gn, JHP ect.)you use makes life easier.
1) Crimp separately does a better job at crimping
2) If you are using different bullet types on a regular basis having a dedicated seater for each bullet type (200gn, 185gn, JHP ect.)you use makes life easier.
rich.tullo- Posts : 2013
Join date : 2015-03-27
Re: Separate Crimp Die Necessary?
There is, however, one situation where a combined seat/crimp die can be useful. If you are using a 5 station progressive press and you want to have a powder check device in station 3 and a bullet dropper in station 4, then the simple solution is to have a combo seat/crimp in station 5.
This arrangement is more likely to be needed by a high volume and high power factor ammo shooter (the run & gun crowd, typically).
This arrangement is more likely to be needed by a high volume and high power factor ammo shooter (the run & gun crowd, typically).
RoyDean- Posts : 1000
Join date : 2021-03-31
Age : 68
Location : Oregon
Re: Separate Crimp Die Necessary?
Only for accuracy...
noylj- Posts : 433
Join date : 2012-03-09
Age : 75
Location : SW USA
Re: Separate Crimp Die Necessary?
Adjusting a seating and crimp die is a pain.
Separate seating die, separate crimp die. Changes to one won’t affect the other. The ease is worth the extra $30 or whatever.
Separate seating die, separate crimp die. Changes to one won’t affect the other. The ease is worth the extra $30 or whatever.
JRV- Posts : 211
Join date : 2022-04-03
BE Mike likes this post
Re: Separate Crimp Die Necessary?
Or a 7/8 washer. If you can find one.
Washer to seat. Set the stem off a dummy rd. Back it off and pull the washer to crimp.
Seat and crimp was ok for jacketed with cannelures, or cast if the crimp groove is large enough. 44 was never an issue for me.
Washer to seat. Set the stem off a dummy rd. Back it off and pull the washer to crimp.
Seat and crimp was ok for jacketed with cannelures, or cast if the crimp groove is large enough. 44 was never an issue for me.
WesG- Posts : 726
Join date : 2018-09-21
Location : Cedar Park, TX - N CA
Re: Separate Crimp Die Necessary?
My STAR progressives have separate seating dies and crimp dies.
rkittine- Posts : 353
Join date : 2020-06-06
Age : 76
Location : Sag Harbor & Manhattan , New York
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