I know these two word do not go together, BUT, her is my question. Shotting a Yugo, using Wolf 122gr HP, 1" moa @ 50. for the first 15 to 20 rounds. Shooting about one round every minute. Next rounds start climbing as much as 6 to 8". The barrel is warm but far from hot. 45 degrees out today.{Love the Ohio weather} I bedded the rifle and the group improved. 8" is alot for a just warm barrel. Could it be anything else? Thanks