Last year when I was shooting limited, I loaded up thousands and thousands of 40 caliber rounds to shoot. I never made it through all the rounds last year. I have a 5" STI 2011 bull barrel limited gun if it makes a difference. This year, I have decided to shoot single stack exclusively with a 40 caliber STI Trojan. So far this year, I have been shooting what I had left over from last year. I still have about 2000 rounds to go through before I need to start loading some more.
Anyways, I went to the range today and decided to chrono my loads just to be on the safe side and make sure nothing had changed over the winter. I decided to take both my limited and single stack gun. I chrono'd my loads out of my limited gun and they averaged a 171 PF, just where they should be. Those same loads out of my single stack gun were only a 166 PF. Can anybody explain what the differences are since they are both 5" barrels? This obviously has me a little concerned since I load with Solo 1000 and it is reverse temperature sensitive. It was 72 degrees out today when I was PF 166 on my Trojan. I have no doubt that here in the hot Kansas summer sun when it is 95+ degrees, my loads will probably fall into minor.
Anybody have any ideas why the difference?