The Firing Line Forums - View Single Post - .357 Magnum for the Coonan semi-auto

noylj · November 5, 2011, 02:57 AM

First, like any other 1911, first find the load that is accurate and feels good. Then, get a set of Wolff springs and determine the spring that cycles the slide fully.
Changing from 125gn to 158gn can easily be a spring change right there. Also, after firing about 400 rounds, parts are burnished and things start working better.
I found a 150gn FMJ with 16.0-17.0gn of 296/H110 and a magnum primer was quite accurate.

November 5, 2011, 02:57 AM	#7
noylj Senior Member Join Date: October 21, 2007 Location: Between CA and NM Posts: 858	First, like any other 1911, first find the load that is accurate and feels good. Then, get a set of Wolff springs and determine the spring that cycles the slide fully. Changing from 125gn to 158gn can easily be a spring change right there. Also, after firing about 400 rounds, parts are burnished and things start working better. I found a 150gn FMJ with 16.0-17.0gn of 296/H110 and a magnum primer was quite accurate.