So I used to use Tight Group with 200's back in the Glock days! I now have a CCG 5" Limited gun. I have tested 180's & 200's with TG, 200's are too slow, 180's are not bad. I also tested some 165's with IMR 7625. I do like the slower powder & 165's, much more like my open gun characteristics.
Yes I have searched here for options, but did not find what I was looking for. What are other powder options are there for 40 Major, 165's & 180's only. I looked at IMR PB (it's available), on the burn rate chart it's right by N320.
All info is greatly appreciated!