30/30 Load

[Zombie1978]

Had a friend give me a box of lead bullets that he had bought for his .30 cal rifle. They are sized .309 and have gas checks. When I load them with 26 grains of BL-C(2) powder they lead the barrel. Not really bad but bad enough that I have to clean after shooting. Does anyone here have a starting point that I could use to load these to about 1100 to 1200fps? The bullets weigh 150 grains. I am shooting these out of a Marlin 336 with micro groove barrel. I have been told to use a bullet sized to .311 but would like to use these to.

[Yodogsandman]

8.0 gr up to 10.0 gr Unique. Good plan, lowering the velocity to 1100 to 1200 FPS should help to reduce the leading. Also, maybe a coating of a tumble lube like Lee Liquid Alox would help, too.

[runfiverun]

tumble lubing them would help.
might even fix your problem.

[GhostHawk]

Perfect place to give Ben's Liquid Lube a try.

If that does not do it I would drop charge until leading slowed to a crawl.

I am using a .312 in my Win 94 .30-30 at around 1000 fps with good results.

Bullet fit is first, then lube, alloy, charge, powder, etc IMO.
.309 seems a touch small and I suspect your 26 grains is more than the alloy can handle adding to the problem.

YMMV

[Wayne Smith]

But the short answer is: No, you can't find a load that will shoot a too small boolit without leading with anything approaching a normal velocity. Fit is King and there is really no other answer. If you can melt and re-cast or give them back to your friend and tell him you need .312" boolits.

[gtgeorge]

If I had bullets that did not fit I would clean them up and powder coat them. That would add a little diameter and also help to prevent leading even as too small. Never thought I would say that but it does work and has it's place. Also might depend on how many you have.

[fatelvis]

But the short answer is: No, you can't find a load that will shoot a too small boolit without leading with anything approaching a normal velocity. Fit is King and there is really no other answer. If you can melt and re-cast or give them back to your friend and tell him you need .312" boolits.
Unless you don't mind cleaning after every shooting, I agree with this statement. Microgroove barrels need fatter boolits.

[MOA]

You could also think about paper patching them too.