paulvallandigham
Passed On
- Joined
- Jan 9, 2006
- Messages
- 17,538
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The gun was my .50 cal. rifle, with a GM barrel, 1:48" ROT, 39 inches long, and the powder charge was 100 grains of FFFg Goex powder behind a .490 ball with a .015 patch, lubed with Young Country 101 lube. The Max. Eff. load under the DF would be 85 grains, approx.
Oh, I started with the 100 grain charge. If we didn't find any powder residue on the sheet, I was prepared to go up to 110 grains, but no further. This barrel is 13/16" across the flat- to minimize weight without swamping the barrel- and I intended it always to be a RB barrel. In fact, I ordered a 1:70" ROT GM barrel,[ but the builder put the 1:48" on instead], specifically to make it a better RB barrel, that would be more forgiving of variances in volume powder charges. It was never intended to be firing Heavy charges.
Oh, I started with the 100 grain charge. If we didn't find any powder residue on the sheet, I was prepared to go up to 110 grains, but no further. This barrel is 13/16" across the flat- to minimize weight without swamping the barrel- and I intended it always to be a RB barrel. In fact, I ordered a 1:70" ROT GM barrel,[ but the builder put the 1:48" on instead], specifically to make it a better RB barrel, that would be more forgiving of variances in volume powder charges. It was never intended to be firing Heavy charges.