Yaddio,

RL-22 can produce some spectacular accuracy and velocities with 130s (and other bullet weights) in the .270. But it's also one of themost temperature-sensitive rifle powders I've ever tested at various temperatures from zero to 100 degrees Fahrenheit--which can result in widely varying accuracy and point-of-impact
Originally Posted by Yaddio
I'm surprised no-one mentioned RL22.

Yaddio,

RL-22 can produce some spectacular accuracy and velocities with 130s (and other bullet weights) in the .270. But it's also one of the most temperature-sensitive rifle powders I've ever tested at various temperatures from zero to 100 degrees Fahrenheit--which can result in widely varying accuracy and point-of-impact. Which is why I haven't used RL-22 for handloading the .270 in over 20 years.

However, have found RL-19 (anybody find any lately?) VERY accurate with 130s, and less temperature sensitive.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck