GO, No GO, Field gauges set for 44 AMP? |
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WVWRZ500N 
International Auto Mag 
Joined: 09 Mar 2008 Location: Lee's Summit Status: Offline Points: 144 |
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 Posted: 24 Oct 2019 at 7:51pm |
Unless you have some exceptional skills with the ream die kit you'll still need a trim lathe. Regards, Bill Wilson Lee's Summit, MO 816-377-3185
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Pantera Mike
Callahan's Auto Mag 
Joined: 20 Jan 2018 Status: Offline Points: 1007 |
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Posted: 25 Oct 2019 at 1:37am |
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The real value in that box is the trim die. That can prove quite useful.
IMHO making your own Auto Mag brass when Starline sells it pre-made is like making your own automobile tires. Yes, with the right equipment, it may be possible, but that doesn’t make it smart. On the other hand, if Starline brass suddenly became unavailable, you would be well-positioned to keep on shooting, as there will always be an endless supply of 308, 30-06 etc brass. Congrats again on the Win!
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WVWRZ500N
International Auto Mag
Joined: 09 Mar 2008 Location: Lee's Summit Status: Offline Points: 144 |
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Posted: 25 Oct 2019 at 4:51am |
Mike, I think you completely missed the point of this thread. The imperative and smart thing to do is to prepare brass that will prolong the life of the gun for generations to come. You can only do that by preparing gun specific length brass with the trim die set and a trim lathe. Regards, Bill Wilson Lee's Summit, MO 816-377-3185
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Pantera Mike
Callahan's Auto Mag
Joined: 20 Jan 2018 Status: Offline Points: 1007 |
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Posted: 25 Oct 2019 at 5:13am |
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Ah yes, good point.
But if the trim die is set, one would trim the brass by filing any excess protruding from the top of the die, no? I see a trim die and a case trimmer lathe to be mutually exclusive tools, no? I went through a very extensive brass setup process when I first started loading 357 AMP. I didn’t have a 357 AMP trim die at the time so had to resize cases, then shorten with my case trimmer lathe. I got lucky in that my chamber perfectly matches the RCBS sizer die so the round chambers perfectly only when the die is touching hard against the shell plate. Since it indexes on the shoulder and normally has a roll crimp (I choose to use a taper crimp), case length isn’t quite as important as with 44 AMP. I have never taken the time to determine the optimal case length for my 44. I have fired mostly factory SBR ammo, and have only prepared a handful of boxes of reloads using once-fired brass, which functioned perfectly. I can of course run the brass through the trim die after a few loadings to ensure case stretch isn’t an issue, but I haven’t gotten there yet, as I have no cases that have been fired more than twice. My 357 and 44 AMP trim dies have therefore been purely decorative up until now....
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AndyC
Callahan's Auto Mag
Joined: 04 Jul 2015 Location: Dallas, TX Status: Offline Points: 467 |
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Posted: 19 Dec 2019 at 8:32pm |
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I will be getting a trimmer - filing down the case gets one pretty close but not precise, and as Bill pointed out, I still want to make an over-long case and trim it down to see what suits my pistol. I have an electric trimmer but that only works on bottlenecked cases, so back to manual again - I don't mind. On a side-note, I was amazed at just how much brass comes out of a reamed case
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John Nada
International Auto Mag
Joined: 23 Sep 2014 Location: France Status: Offline Points: 234 |
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Posted: 24 Jul 2025 at 12:04pm |
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Hi, I'm still looking for a set of gauges. Anything available? |
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Pantera Mike
Callahan's Auto Mag
Joined: 20 Jan 2018 Status: Offline Points: 1007 |
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Posted: 24 Jul 2025 at 2:45pm |
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I’m don’t know but I’m going to go out on a limb and say ‘no’. And there never will be.
The 44 AMP matches the 308 in all respects apart from length so if you were really keen, you could chop the end off a 308 gauge and mill it to do what you want. I would never be that desperate. A file trim die works just as well….
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John Nada
International Auto Mag
Joined: 23 Sep 2014 Location: France Status: Offline Points: 234 |
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Posted: 24 Jul 2025 at 3:09pm |
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This is to pass a gun at a proof house. Gauges are mandatory if you want to proof a gun, and as .44amp is not either a CIP or a sammi caliber, that's a problem.
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Dances with AutoMags
Callahan's Auto Mag
Joined: 13 Oct 2011 Location: Valley Glen Status: Offline Points: 613 |
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Posted: 24 Jul 2025 at 3:45pm |
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Maybe Brian Maynard would make some. I would ask him if I were you. He made me a pair of gages for the .45 STARK barrel he made. I really like this caliber in my Automag IV.
Bruce
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An armed society is a polite society.
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Luc V.
Admin Group 
Joined: 09 Mar 2008 Location: Belgium Status: Offline Points: 1433 |
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Posted: 24 Jul 2025 at 4:39pm |
I think you are wrong. The 44 AMP is cip approved and so is my gun. Once a Gun/cartridge is approved in any E.U proofhouse it should be accepted in all other proofhouses. They can get all the data they need from another proofhouse. That is what I always was told. I also saw frequent 44AMP sales in gemany and austria with proofmarks of this country. Please forgive me if the rules have changed recently, I'm no longer up-to-date...
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AndyC wrote: