My Colt has a 1-8" twist. I haven't noticed any unusual heating of the barrel after using the CMMG kit.
Accuracy is iffy. Two inch groups sound just fine.
Gotta try those Aquila SS rounds. I do have a brick some where.
“Auto racing, bull fighting, and mountain climbing are the only real sports ... all others are games.” Ernest Hemingway ...
NRA Life Member