Barrel "warm up"

[boltman13]

My Walther likes SK Match. I weight sort 100 rounds and use the outliers heavy and life to warm the barrel usually 2-3 shots then start shooting sighters with the weight I will use on the whole targets scoring rings.

[BadgerJack]

You should achieve acceptable accuracy from a cold barrel.

Having said that, over 50+ years of competitive shooting, I have never known any shooter who shoots to "warm" his/her barrel, but they shoot to foul the barrel, because 90-odd% of barrels shoot better when there is some fouling.

If it is below 45~50 degrees, you would be shooting "warming" shots all day long~ possibly dozens or more.