I shot a pattern the otherday, 65 degrees outside 232 in 10" with #6's. Shot today with a different choke 50 degrees outside  227 in 10" with # 6's. Both were shot at 40 yards. How much will that 15 degrees affect the pattern?   All things were the same except the choke and temp. 
I think as the temp rises the pattern will tighten up. Just wondering if anyone had an idea of percentages?