The Firing Line Forums - View Single Post - Issue with A-MERC 45 ACP brass

Ozzieman · June 9, 2012, 12:28 PM

Odd Brass.
I have been helping a friend reload some 45 ACP (he doing all the work using my equipment) and I came up with an odd problem.
In the attached photo are two 45 ACP cases. The one on the left is marked A-MERC the one on the right is PMC and comparing the PMC to all the other brass I have they are all the same.
He picked up 500+ once fired A-MERC and when sized I noticed that it was a little tough going through the sizer but no real issue. It was when we started belling the cases I noticed a BIG difference.
The arrow shows where the expander die stops. It shows a very sharp line where the case was expanded.
Both cases were sized and belled on the same dies with no adjustments.
When I started measuring differences I found that the outside diameters for both (below the expander) were the same. But where the expander opened the case (not the upper bell) the A-MERC was a full .005 inches wider.
The cause is that the case is MUCH thicker.
A-MREC thickness is .012 to .013 and the PMC and all the other brass that I have is .009 to .010.
I have never seen or heard of A-MREC and the brass didn’t come with boxes.
Anyone ever reloaded A-MREC
Thanks

June 9, 2012, 12:28 PM	#1
Ozzieman Senior Member Join Date: December 14, 2004 Location: Northern Indiana Posts: 6,117	Issue with A-MERC 45 ACP brass Odd Brass. I have been helping a friend reload some 45 ACP (he doing all the work using my equipment) and I came up with an odd problem. In the attached photo are two 45 ACP cases. The one on the left is marked A-MERC the one on the right is PMC and comparing the PMC to all the other brass I have they are all the same. He picked up 500+ once fired A-MERC and when sized I noticed that it was a little tough going through the sizer but no real issue. It was when we started belling the cases I noticed a BIG difference. The arrow shows where the expander die stops. It shows a very sharp line where the case was expanded. Both cases were sized and belled on the same dies with no adjustments. When I started measuring differences I found that the outside diameters for both (below the expander) were the same. But where the expander opened the case (not the upper bell) the A-MERC was a full .005 inches wider. The cause is that the case is MUCH thicker. A-MREC thickness is .012 to .013 and the PMC and all the other brass that I have is .009 to .010. I have never seen or heard of A-MREC and the brass didn’t come with boxes. Anyone ever reloaded A-MREC Thanks Last edited by Ozzieman; October 1, 2016 at 05:19 PM.