Oregon Laser Cast in a .308

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qajaq59

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Has anyone used gas checked Laser Cast in their .308 at any of the higher jacketed velocities? If so, how badly did they lead?
 
Higher jacketed velocities. Makes me a little nauseous to think about it.
I have shot some in the low teens and they didn't lead. I think that is about all you can expect. They are no harder alloy and no slicker lube than their pistol bullets, which does not make for good HV cast shooting.
 
although their literature says they can be pushed to jacketed veloceties,their tablls show pretty mild loads. ie: the low end of 'jacketed velocities'.
I"ve pushed my 30-30's to 1800 fps,no leading.don't know how fast they can actufally be pushed .
 
Cast Bullets with Gas Check

2200 fps is Lymans maximum velocity with a gas check. The pressure is another factor to consider as the bullet will Obturate on firing. http://en.wikipedia.org/wiki/Obturate The bullet will deform at a certain point i would guess.:confused: I have not loaded my gas checked cast bullets faster than 2200 fps in 30-30 or 30-06
 
If you push cast GCed rifle bullets too hard, leading can occur very quickly and totally destroy accuracy within just a few shots.

I find I can get low to mid 2k fps, before I get any hint of leading.
I use the hardest alloy I've got and I make my own hard lube, so it's not just blown off by the higher rifle pressures. Then I also tumble lube them for extra assurance.

This sounds like it's alot of effort, but I enjoy making and shooting my own made bullets. And the price of factory produced jacketed bullets these days, makes it more worthwhile.

Gaschecks, lots of lube, hard lead and not too much velocity will keep your barrel unleaded, which is always a good thing. IMO
 
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