Is there a guide line as to how fast that a hard cast bullet, with out a gas check, can be driven with out leading?
I am loading 32-20 for a Winchester Low Wall using a Magnus cast bullet .313 dia. & 118 grains. The Lyman reloading manual shows loads for this bullet only with a gas check and my bullets do not have a gas check.
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It will probably be best to keep velocity under 1,400 fps and best accuracy will probably be at velocities less than that.
The only two chronographed loads I have in my Marlin 32-20 are with the Lyman 31108, 115 grain bullet. 7 grains of 2400 equals 1200 fps and 14 grains H-322 equals 1300 fps. Both are good loads.
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To add on to what KenK said, the other concern with hard cast commerial bullets in 32/20 rifles is the lube. Most of these were made for 32/20, rifle and pistol, or 32 H&R Magnum, for Cowboy shooters. They have a very low velocity limit for their maximum loads.
I once had a thousand Oregon Trail .313 bullets that leaded in everything I shot them in. I saved them by coating with Lee Liquid Alox, according to directions. Most commerial bullets have a hard wax lube, that looks nice and doesn't come off in shipping. But it is a pretty poor lube, in my opinion.
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I have the issue with some .45 bullets, Ric. They have a hard lube and I was thinking of putting them in the oven to melt the lube off and relube with BAC. So the Lee liquid Alox might fix the leading? It sue would save alot of time (not to mention the wife's comments about the abuse of her kitchen).
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Bill, I would certainly try 24 just coated with LLA and the old lube left on. ONLY if that didn't work would I try melting the wax lube off. LLA seems to work in mysterious ways as far as leading prevention. I really don't know why, but it does. Let me know how it goes. Ric
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If you do have to melt the old lube off I would put them in boiling water and strain them in a colander and follow with a rinse in hot tap water.
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I just shot the 311008 this afternoon in my Remington 700 at an average velocity of 1703 fps. I have attached a target show the group. The first 2 shots on a just cleaned barrel were the 10 and 10X. The group is nothing spectacular, but measures .530” ctc. I used an orange juice cardboard gas check wad in the true GC form not a bullet heal. The powder used was H4227. Warmest, Reg Lingle
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Nice shootin' Reg. EDIT; I'd like to see a picture of those gas checks you make.
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Had the same issues with a laser cast 30 caliber bullet, marked PB on box. Actually a GC design with no GC. Leaded everything I tried them in, even after butting a GC on them. I ended up with 2 coats of alox to keep them from leading.
This soured me pretty bad on store bought stuff. I did call them as they guaranteeeeeeed them not to lead. No help, as it was my barrel, load or laoding technique that was at fault.>. Funny everything they were shot in at that time was a seasoned CB shooter.
jeff
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In so far as the effectiveness of LLA, I am pushing a 180gr GCd wheel weight slug out of my 30-40 at 1800 fps with no leading. I coat the groove riding portion of the bullets. once they are loaded I put another coat upon the exposed parts of the bullet below the ogive. time consuming but it works for me.
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