Although it is spring here in Montana, winter is never more than an hour away at any given moment. Folks don’tbelieve me, but we had the “Fourth of July Blizzard” way back in the 80’s. The short version is, no matter what time of year it is…in this state if the sun isn’t out, and youre in the high country, and Mom Nature has been drinking….well, it can get downright cold. Middle of the night temperatures in the 20’s and 30’s in August aren’t unheard of. Anyway, my point is that it can get cold here any time. So, I really found this video about cold weather and it’s affects on our favorite boomtoys to be quite interesting.
The AR did pretty fair…but 50k psi will probably move even the most frozen bolt carrier. I would have liked to see the test done on the .308 rifles like the FAL, HK, and M1A but Im sure the results would have been similar. I’ve gone hunting a bunch of times with the PTR-91 in winter and never had any problems.The most likely scenario for a rifle getting enough moisture in it to freeze is when you come into a warm building after being out in the cold all day. Condensation occurs and the rifle ‘sweats’. Grab the rifle and run out the door and that condensation freezes. It’s my understanding that in the north countries they avoid this by simply leaving the guns outside.
One problem I have experienced has been with a couple SKS rifles that, no matter how much I cleaned and soaked them, still have bits of cosmoline or grease that would solidify in the cold and cause problems. Most notably sluggish firing pin strikes. Clearly there was still residue on the firing pins and in the firing pin channels. Colossal pain in the ass to get it all.
Some people go the extra step of degreasing their guns for the winter and applying a ‘dry’ lube. That’s great for dealing with the congealed lubricant problem, but youre still going to have issues if snow/ice gets in the gun, melts, and refreezes. (And, hey, sleet/snow/rain getting in the bore, freezing, and causing an obstruction is always a major concern. Play it safe, get some gun rubbers, and use them! And while we’re on the subject, I usually use muzzle covers like these for guns that are in storage. Keeps spiders and other crap from getting in the bore and creating problems. And even then, when taking guns outta storage always check the bores before shooting.)
Handguns, interestingly, haven’t had the same problems in my experience. The Glock (naturally) works just fine in the zero-degree weather since lubrication is a ‘nice to have’ with the Glock rather than a ‘must have’. While I have never had parts break from the cold, I have seen a few plastic magazines break when dropped at the range when it was really cold. Something to think about there.
And finally, cold weather puts a heck of a whammy on batteries. If you’re using a piece of gear that uses batteries, swap those batteries out for lithiums. More expensive, but much better for cold weather use.
By the by, ‘cold’ in Montana isn’t the same as ‘cold’ in, say, North Carolina. When I say ‘cold’, I’m talking about anything around 0 degrees.
=============
Sidebar: Welcome back from hiatus Self Sufficient Mountain Living.