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Old September 16, 2012, 09:07 AM   #1
wogpotter
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Colt Trooper max length?

Simple really what is the max COAL specifically for the Colt Troopers?
I don't mean the standard max for .357 mag, but for the trooper's shortish cylinder.
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Old September 16, 2012, 05:45 PM   #2
joneb
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If I remember correctly 1.590" is about as long as you want to go.
I can go up to 1.637" in my Ruger Sec. Six and I use a heavy crimp as there is little room for bullet jump.
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Old September 16, 2012, 08:45 PM   #3
Sport45
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Have the gun there?

Put a case in the cylinder and measure from the base to the front of the cylinder. Subtract 0.010" and you'd be looking at the max cartridge length I'd load for that revolver.
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Old September 16, 2012, 09:46 PM   #4
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I have two Trooper Mk III's made in 1970 and 1971. Cartridges that fit one will bind on the end of the barrel on the other.
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Last edited by dickttx; September 17, 2012 at 06:07 PM.
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Old September 17, 2012, 07:40 AM   #5
wogpotter
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Quote:
Have the gun there?
Nope, that's why I'm asking.
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Old September 17, 2012, 03:30 PM   #6
wncchester
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Colt Troopers were made to accept SAMMI spec ammo. Most bullets have crimping grooves located so the loaded lenght won't be too long and lock up the cylinder.
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Old September 17, 2012, 06:10 PM   #7
dickttx
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I realized I had both of the guns here, so I went down and measured the cylinders this afternoon. The 1970 cylinder was 1.600 long and the 1971 was 1.590.
What I could not measure relyably was the barrel/cylinder gap. It is noticeably smaller on the 1971 than on the 1970.
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