Search:

How long for barrel cooling? I gave it 5 minutes the other day and results were good.

Have to say, I'll often shoot a beautiful three shot group, then decide to put another two down the range to prove the point and they're all over the place!

Not an expert, but waiting for the barrel to cool does make a difference. More waiting around with 5 shots. Would love to hear from people that have properly tested it too.