tj3006
.375 Atomic
Posts: 1,966
|
Post by tj3006 on Sept 21, 2020 15:42:07 GMT -5
I ordered 1 each in .38 .357 and 44 ,44mag, having never used one before, my thought, is load up some .357s , and seat to the crimp grove with the standard die , then Crimp in a separate operation. Is there way to improve my odds of finding the best crimp , quickly or just trial and error ? thanks...tj
|
|
|
Post by wheelguns on Sept 21, 2020 16:16:49 GMT -5
I use the redding profile crimp dies in all calibers. I like them. What works for me is to screw it in till you just start crimping, then lower for the desired crimp. It is important to realize that a quarter turn changes the crimp a lot. So go slow. It starts out with a roll into the crimp groove, but as you screw it down, it will give you what looks like a collar at your crimp. It is hard to explain, but it is easy to get the hang of it.
|
|
|
Post by hunter966 on Sept 21, 2020 18:28:01 GMT -5
tj and wheelguns, I don’t mean to cut in on ya’lls discussion but I have to ask.
When you start turning down the Redding die and you start to see the collar, is this where you want to be in the end or do you want to turn it down slowly to get even more of a collar?
I’m using the Redding profile dies on a 44 mag and 45 Colt and I really don’t know how far to take it.
Thanks hunter966
|
|
tj3006
.375 Atomic
Posts: 1,966
|
Post by tj3006 on Sept 21, 2020 18:29:53 GMT -5
I will see if you tube has something
|
|
|
Post by wheelguns on Sept 21, 2020 18:53:37 GMT -5
It all depends on the load. For magnum loads with slow powder, I like a heavy crimp. This would be when I want to see this stepped collar. For heavy bullets like my 386 grain in 480 ruger, I like a nice roll into the crimp. A firm crimp, but not necessarily the stepped collar. The problem with too much crimp, is it will overwork your brass. Once you make that step collar, your sizing die won’t remove it. The best way to test your crimp, is load six, shoot five, then measure the last one to see if the bullet moved. I would definitely use a heavier crimp on 44 magnum than I would on standard pressure 45 colt.
|
|
|
Post by leadhound on Sept 21, 2020 19:28:55 GMT -5
Overcrimping can also bulge the neck making it difficult or impossible to chamber the round. But I believe the profile die prevents this? Never used one I am speaking of regular crimp dies.
|
|
|
Post by Encore64 on Sept 21, 2020 19:35:50 GMT -5
It's a myth that a heavy crimp improves magnum powder ignition. It's neck tension that matters.
I've even read this in popular Reloading Manuals. Also, if anyone chooses to believe it, no problem here.
Often stuff is published that a "good roll crimp is required" with H110, 296, etc.
Makes you wonder how the 45 Win Mag, 50 AE, 30 Carbine, etc even go bang.
On my heavy magnum loads I usually dual crimp with a roll crimp (to hold the bullet) followed by a taper crimp (to increase neck tension). This also solves the occasional problem associated with cast bullets and tight chambers.
|
|
Ramar
.30 Stingray
Posts: 399
|
Post by Ramar on Sept 22, 2020 6:46:49 GMT -5
Another question: Do you profile die crimpers lube cases before crimping? After using a profile crimp die (for 44 Mag and 45 Colt) there are often little loose brass rings around the case mouth. Using Lee's collet crimp die works better for me. No lube, no scraping.
|
|
|
Post by wheelguns on Sept 22, 2020 7:38:31 GMT -5
Another question: Do you profile die crimpers lube cases before crimping? After using a profile crimp die (for 44 Mag and 45 Colt) there are often little loose brass rings around the case mouth. Using Lee's collet crimp die works better for me. No lube, no scraping. I have never had that happen to me
|
|
tj3006
.375 Atomic
Posts: 1,966
|
Post by tj3006 on Sept 22, 2020 8:00:08 GMT -5
When the manuals recommend a heavy roll crimp , I always thought they were worried about the bullet jumping forward and locking up you cylinder more than ignition issues. I bought the profile crimp dies because my OM flat top 357 has tight chambers when compared to my NM.357. I loaded some rounds with a crimp to heavy to fit in the OM chambers. But they fit the NM fine. So I likely could have solved the problem just by separating pp@a the seating operation from the crimping. But Dick Thompson recommends the profile dies. So I will try them in .357 and 44. If I get a marked improvement I will order them in .32 .41 and .45...tj
|
|
|
Post by magnumwheelman on Sept 22, 2020 8:50:20 GMT -5
I own & have used both Lee Collet Crimp & Redding Profile Crimp dies ( not together in the same loading ) both work well... I've also used a taper crimp afterwards to insure smooth feeding on tight chambers / with cast bullets...
you can really shorten your case life over working the case mouths with too much crimp... so I only use the above mentioned "crimpers" on boomers or ultra light revolvers where the recoil can move bullets...
|
|
|
Post by nhithaca on Sept 22, 2020 15:38:48 GMT -5
I really like the Lee Collet Crimp dies, they make a real good rolled crimp and then sort of resize on the way out of the die. Never any issues with chambering. Problem is, they don't offer them for all calibers. Did buy a Redding Profile crimp die for the 45AR to get a good roll crimp on lead bullets used in a S&W 625, because the 45 Colt dies are too long to crimp the stubby AR cases.
|
|
dhd
.327 Meteor
Posts: 941
|
Post by dhd on Sept 22, 2020 18:07:45 GMT -5
Another question: Do you profile die crimpers lube cases before crimping? After using a profile crimp die (for 44 Mag and 45 Colt) there are often little loose brass rings around the case mouth. Using Lee's collet crimp die works better for me. No lube, no scraping. No to the lube. I have seen shavings before but no complete rings. I've mostly seen shavings on new brass so I always thought it was due to a sharp OD on the case mouth.
|
|
|
Post by ddixie884 on Sept 23, 2020 19:48:22 GMT -5
I've been using the Redding Profile dies in .41 for a couple of years and bought a .44spl awhile back. I recently bought one in .38spl and used it the other day on some heavy loads of Herco for an airweight snub. I appreciate the option of a really long heavy crimp as well as turning my dies into a 4 die set...............
|
|
Ramar
.30 Stingray
Posts: 399
|
Post by Ramar on Sept 25, 2020 7:10:10 GMT -5
Another question: Do you profile die crimpers lube cases before crimping? After using a profile crimp die (for 44 Mag and 45 Colt) there are often little loose brass rings around the case mouth. Using Lee's collet crimp die works better for me. No lube, no scraping. No to the lube. I have seen shavings before but no complete rings. I've mostly seen shavings on new brass so I always thought it was due to a sharp OD on the case mouth. Thanks, dhd. New brass/sharp OD...that's a thought. Also wondered if it's because, after wet tumbling, brass is "squeaky clean" (grabs more). I've tried ArmorAll Wash and Wax liquid in the tumbler but it doesn't seem to make a difference.
|
|