Range

hey Sangster I've got a 270wsm also, the browning a-bolt hunter, finaly got it shooting good groups. I think the problem was I wasn't leting the barrel cool down enough during 6 shot groups, first 3 shots in one ragged hole, but the next 3 opened up, bit still under an inch at 100 yds. my question is, does the tika heat up fast also?