In theory, a little over 70 grains. Personally, I do not believe that a Seneca (or Cherokee) are candidates for ‘magnum’ loads. They are light graceful guns that have not been made in years. Break or damage something, good luck finding parts for a reasonable price if at all. I have found my accuracy loads with these light TCs in 45 caliber to be well less than 60 grains of 3F. Find no point in going past accuracy load.I was reading the load manual for my thompson center 45 cal Seneca and it says max load is 90gr of 2f for a round ball. What do you guys this the max equivalent load for it with 3f is?
With the 10% reduction, the equivalent load would be 80 grains volume of 3fg black powder. Use less of the more powerful substitute black powders. As stated by @SDSmlf, the Seneca and Cherokee are light guns and not meant for heavy loads. Develop the best load for accuracy on target and do not develop a load for a maximum powder charge.I was reading the load manual for my thompson center 45 cal Seneca and it says max load is 90gr of 2f for a round ball. What do you guys this the max equivalent load for it with 3f is?
Sam was an advocate of heavy loads. He did most of his hunting at longer ranges. The manual mentioned is good, but don't go following all those recommendations for max loads.Get the Lyman Black Powder Handbook & Loading Manual, 2nd Edition by Sam Fadala great book
"Now days trying to take it easy on the little gun. However have yet to find an accurate rd ball load and it seems to prefer 70 grs of 3f with 240gr maxi balls."Have a T/C Cherokee I have owned for 30+ years. In my younger days Foolishly shot 100grs in it of who knows what powder but we also thought you used cleaning patches for round ball loads.
Now days trying to take it easy on the little gun. However have yet to find an accurate rd ball load and it seems to prefer 70 grs of 3f with 240gr maxi balls.
That’s more than I want to shoot, my chart says a max load of 80grs -2f but it took that to get a decent group at 50 yards however not giving up. I have one goal for the rifle and that’s to harvest a nice buck with it. After that I want to focus on a accurate mild plinking rd ball load as i will retire the gun for my 54 renegade for hunting duty.
This is not exactly correct but I tend to go 10grs less for 3f vs 2f.
What bullets would you recommend?"Now days trying to take it easy on the little gun. However have yet to find an accurate rd ball load and it seems to prefer 70 grs of 3f with 240gr maxi balls."
I would suggest you need heavier bullets to match the rifling twist. Just from my experience with bullets in modern rifles, never have, nor will I, use a maxi ball in a muzzleloader.
You would need to find out the twist of your rifling.What bullets would you recommend?
It’s 1/48You would need to find out the twist of your rifling.
https://www.ssusa.org/content/how-to-calculate-rifling-twist-rates-for-stabilizing-bullets/
What bullets would you recommend?
The Seneca and Cherokee 45 caliber factory barrels were 1-48. I have personally repaired more than half a dozen of their stocks over the years. All were shot using heavy loads and or conicals. For a T/C Seneca or Cherokee I would stay with 60 grains of 3F and a patched round ball max. No point in shooting heavy charges and turning one into a parts gun. If you want an extra hard hitting muzzleloader best to go up in caliber. Plenty of options out there.You would need to find out the twist of your rifling.
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