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Roscoe Regulator

My setup for 45CS (Cowboy Special)

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8 hours ago, Roscoe Regulator said:

You have your own experience, but have you ever pulled a bullet and measured its resulting diameter? Usually a Lee FCD with lead bullets feels like sizing the bullet.

I minimally bell the brass and crimp lightly...only enough to reduce the flare.  Shooting out of a revolver.  Same crimp "tightness" for the acp loads so not much needed there either on the 1911.  A little tighter crimp on the 45 colt fullsize for the tube magazine in the rifle but not much.  look at the photo...doesn't appear any deformation.  If I take apart a round, the hitek coating shows no cracking.  With the BP loads, I want a snug crimp for minimal blowback in the straightwall brass, not excessive.  Its a light 2 fingers on the handle pressure when crimping occurs, not a firm press like resizing the case in the first step.  Maybe the close up shows the extent of the crimps.

IMG_20190204_192926.jpg.6b848d3da2bf7a0cfe2164a9d8e2d9ee.jpg

Edited by Trooper Ozzy

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8 hours ago, Garrison Joe, SASS #60708 said:

Using a 45 Auto crimp die will almost never give you a roll crimp.  They are usually designed to give a taper crimp, turning into a crushing taper crimp when over tightened.   The .45 Colt or a .45 Auto Rim crimp die works SO MUCH better.  The .45 Colt only crimp stem can be lowered far enough.

 

That's why I use a .45 Auto Rim crimp die (as I stated many posts above).

 

Good luck, GJ

And based on your previous post I ordered a Redding Profile Crimp die for 45 AR...last one Midway had and discounted to $30, free shipping on a $50 order. I added a 44/45 shellplate for my Auto Breechlock Pro to move 45 CS to progressive production. If I size in bulk and hand prime I will open a station (4-hole) for a dedicated crimp.

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1 hour ago, Trooper Ozzy said:

I minimally bell the brass and crimp lightly...only enough to reduce the flare.  Shooting out of a revolver.  Same crimp "tightness" for the acp loads so not much needed there either on the 1911.  A little tighter crimp on the 45 colt fullsize for the tube magazine in the rifle but not much.  look at the photo...doesn't appear any deformation.  If I take apart a round, the hitek coating shows no cracking.  With the BP loads, I want a snug crimp for minimal blowback in the straightwall brass, not excessive.  Its a light 2 fingers on the handle pressure when crimping occurs, not a firm press like resizing the case in the first step.  Maybe the close up shows the extent of the crimps.

IMG_20190204_192926.jpg.6b848d3da2bf7a0cfe2164a9d8e2d9ee.jpg

I did "look at the photo" and thought those wouldn't suit me unless roll crimped like the 45 Colts. That would be with smokeless.

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In between rainstorms and other commitments I got to the range with more test loads. I got some mild muzzle flip but both loads are 5-10% under published minimum (Lyman cast book). I thought 4.9 of Titegroup might be a bit more of a jump from the previous 4.5. I had just stepped to the next autodisk aperture. I could split the difference to 4.7 with an adjustable charge bar, a double disk, or switching to an autodrum without disk increments. 4.9 TG/160 shoots okay, but I favored the W231/HP38 load result. The 6.0-6.1 of HP38, about 5% under Lyman's published minimum, seemed like the kind of feel I was used to with 38s in smaller guns. I was firing a 5 1/2" barrel Vaquero. I went ahead and loaded 60+ rounds with HP38 and will not go further until experiencing a match with this load.

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C45S crimped with Lee .45 ACP crimp die.

 

image.thumb.jpeg.7d84fde71cc84a8b63fe7fd0500535ce.jpeg

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I use a RCBS sizer, the .45 thru expander on my Dillon 550B, a 45ACP Roll Crimp/Seater die with 160 grain RFN bullets from Badman.  

54CQ3e5.jpg

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10 hours ago, Griff said:

I use a RCBS sizer, the .45 thru expander on my Dillon 550B, a 45ACP Roll Crimp/Seater die with 160 grain RFN bullets from Badman.  

54CQ3e5.jpg

Does that crimp use the crimp groove? Can't tell from pic. Here's the bullet.

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2 hours ago, Roscoe Regulator said:

Does that crimp use the crimp groove? Can't tell from pic. Here's the bullet.

Yes, here's a better picture of that

2186Mi5.jpg

Remember, where the crimp is applied is all a matter of die adjustment.  A combination of die and seater depth.  While independently adjustable, both are contingent of the other for proper adjustment to have a properly seated and crimped cartridge.

Edited by Griff
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Followed the tip and got a Redding Profile Crimp Die for 45 Auto Rim and got the crimp I was looking to achieve.

 

WP_20200214_001.jpg

WP_20200214_002.jpg

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Yes, the C45S loads look nice.

 

Now, I'd take a look at your .45 Colt crimp.   I see a couple of cartridges that have a perfectly lousy crimp - the case mouth is hanging out past the lead and waiting to snag a barrel breech while trying to hit the chamber.  All look less than robust.

 

Good luck, GJ  

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9 hours ago, Garrison Joe, SASS #60708 said:

Yes, the C45S loads look nice.

 

Now, I'd take a look at your .45 Colt crimp.   I see a couple of cartridges that have a perfectly lousy crimp - the case mouth is hanging out past the lead and waiting to snag a barrel breech while trying to hit the chamber.  All look less than robust.

 

Good luck, GJ  

That is a good catch. I saw that too. They actually looked pretty good under magnification but I ran a few back through the crimp, which made a difference I could feel and see. The thing is that, if room is left for case length variance, the case mouth is not necessarily hidden, yet is bent in well enough to feed just fine. All of my ammo has passed a cartridge gauge. These will be run in a JM Marlin Cowboy.

Edited by Roscoe Regulator

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On ‎2‎/‎7‎/‎2020 at 10:33 AM, Prairie Dawg, SASS #50329 said:

I use the Hornady die set recommended by Adirondack Jack when he started selling the 45 Cowboy Specials:

 

"The very best results to date have been achieved using Hornady New Dimension .45 caliber dies no. 546554.

Note Hornady uses the same dies for .45 Colt, ACP, Autorim, and win mag.

They produce a proper roll crimp, and use a sliding bullet guide that aids in seating even very short bullets straight."

 

if you wish to read his article, link here.

http://74.220.214.175/nick/cowboy45special.pdf

 

--Dawg

Have these dies already so will try my hand at C45S. Planning to size with the 45 colt die, Dillon 45 colt expander in my Dillon powder measure and set the seater die to both seat and crimp

Thinking the 45 colt shell plate and pins will work on my Dillon 550 to hold the cases securely?

Regards

 

:FlagAm: :FlagAm: :FlagAm:

 

Gateway Kid

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57 minutes ago, Gateway Kid SASS# 70038 Life said:

Thinking the 45 colt shell plate and pins will work on my Dillon 550 to hold the cases securely?

Sure does.  Exactly the shell plate/pins I use.  The C45S is just a cut off .45 Colt case.

 

Good luck, GJ 

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5 minutes ago, Garrison Joe, SASS #60708 said:

Sure does.  Exactly the shell plate/pins I use.  The C45S is just a cut off .45 Colt case.

 

Good luck, GJ 

Thank you!

Gateway

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