i saw bore butter freeze at range in dec.a lot of cursing.its not so good in winter with patch/ball. i used it on my maxi-balls for 35 years. some temps were 20 below here in pa.the bore butter in your BARREL will freeze.its a son o f gun to push a patch or maxi down barrel when bb is frozen in barrel.i started not using any bore butter in BARREL during winter.i used it on maxi-ball.as for patch/ball,i stopped using them in winter LONG AGO.i am too busy looking for horns than worrying about a patch/ball being nasty to push in. mostly i kill my buck with 1 shot and i load rifle at home, in warm.take care