How Cold Does Boolit Lube Hold Up

[Shiloh]

in the 20˚'s Is as cold as I have fired cast boolits with Larsen's Carnauba Red.
Anyone shot them colder?? How cold?? Currently -6˚and feels like -26˚
I though about it then came to my senses.

SHiloh

[bosterr]

About a week and a half ago I fired a 40 S&W semi auto using boolits lubed with Carnuba Red. A few days later after the snow melted, I found 5 laying on the bare ground. 2 still had the entire lube groove still filled and the others had a varying amount still left in the grooves. I was ladder testing and the upper end loads gave me some barrel leading. I'm not sure if a warmer temperature would have let the lube fling out of the grooves. Velocities were between 800 and 1000 fps.

[JonB_in_Glencoe]

I've never tested it myself, but others have said CR can throw cold barrel fliers.

http://castboolits.gunloads.com/show...-lube-and-cold

[runfiverun]

not just flyers but it doesn't fling out of the groove evenly that is what causes them.
cold weather shooting needs cold weather lube.

if your gonna start shooting below about 10-f your gonna learn new acronyms like POE,POA,PAG, and how various animal fat's flow in the cold.
anyway at 10 I add a little more paraffin, and some ATF to my normal lube.
one for the barrel and one for the pressure flow of the lube after it crosses the throat.
the ATF also breaks down the ester alcohol chains in the bees-wax just a bit helping it slide and flow easier.

at around -20 you need to re-think your entire lube system I switch to a polyglycol base and rely more on metallic solids rather than metal stearates to lock up the mineral oils and polyolester based stuff.

hope this helped [shrug]
we have a sticky in the lube section that took a couple of years of testing it would be worth reading for anyone that wants to know more or explore it further.