Can anyone give me recommendations as to what the maximum velocity threshold should be for Lee Liquid Alox lubed bullets?

I've lubed about 1,000 .38 Spl. bullets for low velocity (under 700 fps) plinking. Getting ready to start casting 440 GC bullets for my 500 S&W. Will be using Trail Boss for low impact practice loads that should stay below 900 fps, but want to use them in my H&R Handi where I'm sure the speed will exceed 1,000 fps.

All things being as they should, how fast can I expect to get before I start getting leading issues?

No response necessary from those whom only wish to extol the virtues of Lubesizers. I know they're better, but any casting I do will be right at or below the 1,000 fps level.

Thanks!

1-k should be no problem.
the alox lube working at 500 fps is dependent on how the boolit fits the gun anyway, adding more velocity don't matter.
I have seen alox and graphite reach some rather spectacular velocity's.

now put alox lube under duress on its own and it will fail rather spectacularly.

lube doesn't make or break a load.
it can enhance accuracy or ruin it though.

Lamar, can you expand on the alox lube failing?
I am a newbie to casting for cartridges.
I am basically going off of Lee's info and the Lyman Casting book as well as guys around here. I am sure that Lyman is the real-deal but they seem to push their product names only.

they all push their products.
if you have read Richard lee's books [I think he used to work for herters] you'll see the same thing.

alox [tumble lubing] covers the boolit your biggest fight with cast is gas cutting.
this can come from a poor mechanical fit [too small]
the static fit remaining all the way down the barrel.
or the lube going from flowing to not flowing at some point in the barrel.
or the opposite where it doesn't start.

a lube that fills a groove starts moving under pressure/heat and provides the alloy that's moved by the rifling a place to go.
the lube is a seal along the edge of the rifling preventing gas blow bye.
this is something the alox coating doesn't do .
the little grooves cut into the lee boolit negate the displaced lead by providing many places for it to go and many rings to try and seal the rifling off.
the thin coating of alox is more a lubricant than a seal.

if however the seal of the boolit itself fails, the alox provides no seal or floating gasket to stop the gas.
of course it doesn't blow off in the throat either.

however alox is a calcium soap it has a tendancy to build up in the corners of the lands.

All I know is that I've shot a few thousand rounds of Lee Liquid Alox lubed bullets from .38 and .45 handguns at lower (less than 850 fps) velocities with almost zero leading.
I want to start shooting LLA lubed gas checked 440 grain bullets from my 4" S&W 500 and from my H&R .500 Handi Rifle. I'll be loading apprx. 9.0 gr. of Trail Boss, which per the manual should produce a velocity of about 850 from a handgun. I'm assuming this will equate to around 1,000 plus from the Handi's 22" barrel and don't want to find out the hard way that Alox lubed bullets shouldn't be pushed this fast.

I shoot alox lube bullets out of my 44mag at 1320fps very very little leading nothing to worry about for sure.

I shoot them out of my 45-70 at 1400 no leading.

shoot them out of my 9s 40s and 45acp at a 1000 and under no leading at all.

One can lube a lot of bullets fast

like I say it all depends on the boolit doing it's job of sealing things off.
I have pushed a modified alox tumble lube over 1600 in my 45-70 and to over 2100 fps in my 8 mauser.
I have never tried it in a handgun.

Like everyone here says- the fit of the boolit to the bore is the most important part of the equasion. Too loose and the gas blowby will solder lead to the barrel no matter what is used for lube.

I've pushed Lee Liquid Alox to over 2000 FPS in .30 cal. rifles with no noticable leading.

Porosonik.

quote:

Originally posted by Lamar:
like I say it all depends on the boolit doing it's job of sealing things off.
I have pushed a modified alox tumble lube over 1600 in my 45-70 and to over 2100 fps in my 8 mauser.
I have never tried it in a handgun.

+1 I have pushed bullets to the same velocity as Lamar with alox/Johnson paste wax mix with no leading. All my molds are tumble lube, I have never had reason to change.