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Old December 25, 2010, 09:13 PM   #1
diderr
Junior Member
 
Join Date: December 25, 2010
Location: Sheridan, Wyoming
Posts: 4
45/70 494 grn load over pressure?

I just bought my Pedersoli 74 Sharps a few weeks ago. I developed a BP load and a smokeless load. I went off some load data I found online for the Benchmark. I've shot 15 rounds so far and have about 30 left. I charged it with 47 grains of benchmark with Remmy brass and a 494 cast seated out further than normal to about touching the lands. The load is not compressed, but the powder is touching the base of the bullet. I looked of the Hodgdon loading web sight and for a 485 cast (closest I could find) max is 43 grns, but that load is only 23,400 CUP. The Pedersoli is rated to 29,500 CUP. I'm not going to make more. I'm going with a 535 and IMR 3031
So i guess my question is 4 extra grains of Pow going to exceed my pressure limit?

Should I shoot off the rest?

What pressure signs should i look for in the rifle itself?

Recoil is pretty harsh, but I kind of expected that from a 500 grainer.

Accuracy was fair. I had some stringing left to right from me pulling.

There was a small amount of lead fouling. I wasn't using a gas check.

Thanks,
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