Big Rat

What powder are you using? Some are temp sensitive. Even though it's been pretty hot around here, I'd expect it to be over 100 out there. I am using Autocomp 7.4 grains, OL 1.170 in an STI GM.

Thanks for the input. I run 121 Mg at a PF of 173 and had a PF of 174 at Area 5. I just wanted to make sure that I would be OK out west. Thanks again for the input.

I have a slot to shoot in the Nationals (Open) in Vegas. My question is there any significant change in velocity due to the difference in relative elevations? At Area 5 this year, a shooter from California made major PF at home; however, here (IL) he made 164.9. I would appreciate any guidance offered.

Do a search or go to the 9mm subforum in the reloading section and scroll through the first couple of pages. PLENTY of data posted. Thanks much, will do.

I have a STI 9mm MAJOR GM on the way and am looking for some starting loads. Plan on shooting MG 124's or 121's. Suggestions would be greatly appreciated.