The Firing Line Forums - View Single Post - Best single stage press for concentricity?

jmorris · January 28, 2017, 08:31 AM

Spend your money on dies.

I can put good dies in a 550, 650, 1050 or cheap Lee single stage for that matter and get more concentric sized cases and loaded ammunition than my Co-ax with dies that are less than ideal.

If you ammunition is crummy now and you buy the best press then screw in the same dies, I wouldn't hold my breath on getting great results.

FWIW the 550 is the only progressive where the case doesn't sit "on" the shell plate, it is much like the co-ax in that the shell plate is only there to remove it from the die and any error in alignment it has, has no effect on the round going into the die.

January 28, 2017, 08:31 AM	#4
jmorris Senior Member Join Date: November 22, 2006 Posts: 3,078	Spend your money on dies. I can put good dies in a 550, 650, 1050 or cheap Lee single stage for that matter and get more concentric sized cases and loaded ammunition than my Co-ax with dies that are less than ideal. If you ammunition is crummy now and you buy the best press then screw in the same dies, I wouldn't hold my breath on getting great results. FWIW the 550 is the only progressive where the case doesn't sit "on" the shell plate, it is much like the co-ax in that the shell plate is only there to remove it from the die and any error in alignment it has, has no effect on the round going into the die.