519 would/should work well in original sharps barrels, and the converted 63's.
What's the twist in that barrel.

The extra powder capacity of that big case will help to stabilize bullets heavier than the 473 and 500’s  maybe go up to 750 or so but the recoil factor will go up with the heavies
It’ll be interesting to see what you can get that rifle to do

What is the wrapped diameter of the 678gr bullets?

I spent a lot of time shooting my .50-90/2.5 Shiloh and I found that the larger .50 bore with a 1/22 twist shot a longer bullet then you would use in a lesser diameter caliber. I tried the shorter 1.4" and they just would not shoot well till I got up to the 1.5" long creedmoor nosed Paul Jones mould as well as a mould from Steve Brooks cut with his creedmoor nosed bullet that dropped out at 712 grains at 1.503" and I used that bullet for many years shooting long range irons and it served me well with 110 +- grains of 2F Goes express weight variances from lot to lot changes. I have shot the 3-1/2 50's and they shoot quite well when you learn to roll with the recoil but they had the slower 1/32 ? twist shooting the shorter bullets.

Kurt

If you tape over the extractors removing them isn't necessary if your use cerrosafe.
Be sure to get the first inch or so of the rifling in that cast, it will help to get a good bullet diameter.

The Sharps is apart to do the casting, and I discovered a broken transfer bar. I've had it apart numerous times in the last week to check, and the 2 piece system of firing pin and separate transfer bar were fine. Today the transfer bar was snapped!
Since this is unlike originals, it appears I am going to have to figure out if one of the modern clones that use a 2 piece setup might be close enough to modify, or if an original copy might be modified into just a transfer bar by cutting the firing pin off, and shaping the rest to fit?
I've ordered one of each, and will see which is the easiest to rework. Once the two parts are here, if neither works I'll contact a gunsmith friend and see if he can tig weld this one back together?
Anyone recall the name Markus Moll a German master gunsmith who was making copies of the Freund Sharps? I'm told he was sourced for some of the worn out parts when this Sharps was restored. Not sure who he is, or if he's still alive.

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Ranch13 wrote on Oct 10^th, 2023 at 11:20pm:


Do the Shiloh Sharps use a one piece, or two piece firing pin?

I found Rich McKinney info in Loveland, Co. Is this the same guy?

Ranch13 wrote on Oct 11^th, 2023 at 10:18am:


I sent a message to Shiloh to ask if I could send them my broken transfer bar to compare to theirs and maybe buy one to rework for my Sharps.