Two years later the project is done, the .62 rifle is complete.
Thompson, Can you post a picture or two of it here? I am interested to see variations on the .62 rifle themeNice! My .62 has a coalrain barrel as well. Mines a 1:66 twist, 36” and it tapers from 11/8 to 1” at the muzzle.
Thanks, Excess! I appreciate your guidance a lot. Last year I was fortunate to locate someone here who sent me three molds: .600, .605, and .610, and I cast a pile of the two smaller sizes. The Colerain barrel has shallow grooves, but this is all new to me, so I’ll be sure to have a nice stash of different patch material.I'm thinking you're gonna want a .595" roundball and heavy cotton duck cloth, or at least their heavy ticking for patch material. My Colerain has been shot a fair amount with .604" from a Lee .600 mold, and both cotton duck and heavy ticking. I use the heavy ticking for reloads with the under barrel rod. A smaller diameter ball will definitely be easier to load, and you'll need those thick patches to fill Colerain's grooves.
Your rifle is going to be heavier than mine by a pound or two, but that buttplate still looks like a weapon. I'll suggest starting with 80gr fffg or 100gr ffg and see how that works. Work up 10 or 20gr at a time depending upon how it feels, and how much velocity you want, and what your groups look like.
I see TOTW has .595" and .600" RBs in stock. If you order from them, get a tin of mink oil to use as a hunting lube.
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