So I've been shooting 9mm Minor for approximately 3 years: Prod, SS, and Limited/MG minor. I've been loading 147's with the popular recipe of 3.2 gr of TG. I recently switched to shooting some carry optics. I ordered the Gray's Guns rod to use 2011/1911 recoil springs to tune it. I really loved the feel of the 12# spring and it cycles perfectly. I went out and shot a match with it and noticed my optic hitting the brass. I went to the 11# spring and the brass isn't an issue but I hate how hard the slide comes back...now to my question.
I'm trying two things. 1) Loading 124 gr to 130PF-ish in the hopes this speeds up my slide so the brass clears (with a 12# spring); 2) trying out a 12# progressive spring in the hopes that the initial unlocking of the barrel/slide is faster accomplishing the same thing. I've never loaded 124 grains, does it speed up the slide? Will 12# progressive springs help as well? Is this the right area of the forum for this question? ;) thanks!