I spend alot of time shooting in the off season and have noticed that some of my rifles shoot better in temp changes than others. I' m not talking about when the barrels get overheated, just casual shooting. For instance I have 2 .270' s of different makes. One shoots 1" groups no matter what the temp changes seem to be. Maybe a slight change in where the bullets hit on the target but groups stay tight.

The other shoots good as well, but seems to throw out a flyer every 4 to 5 rounds that will open the group. But in cold weather in doesn' t ever throw flyers.

Anyone care to throw their 2 cents in?