Have to admit, thoroughly cleaning HK roller-locked style rifles isn’t my favorite chore. It’s the fact that the barrel and trunnion sit so deep inside the folded upper, I have to work extra hard to make sure everything is 100% clean.
![PTR-91 Truck Gun getting winter maintenance](https://john1911.com/wp-content/uploads/2016/12/Winter-Maintence-Cleaning-the-PTR-91-2.jpg)
This time isn’t so bad. The rifle is not fouled up from shooting. Just been riding around in the back of my pickup all year and a blast of arctic cold air is coming my way. This is a good time to give the rifle a once over, wipe-down, punch a layer of lube down the barrel and otherwise confirm all is well.
![I check the barrel for corrosion, and keep lube to a minimum even though Slip2000 does GREAT in cold weather.](https://john1911.com/wp-content/uploads/2016/12/Winter-Maintence-Cleaning-the-PTR-91-1.jpg)
For those asking…I am very particular about the lubricants I use in guns. Especially in the winter. Like clock-work, I start hearing grumblings about “green lube x” and “natural lube y” freezing up guns in cold weather. Depending on the application, sometimes no lube at all is preferred. Yes really.
![The virus theory of ideas: someone convinced people that bears are cute. Wonder if that person every had any contact with a real bear?](https://john1911.com/wp-content/uploads/2016/12/Polar-Bear-Attack-Berlin-Zoo.jpg)
But look at it like this. Those green lubes will save a baby seal’s life. How? The polar bear will eat the guy with the locked-up rifle instead.
Canola: condiments for polar bears.
Marky
www.john1911.com
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