WCF - RP Corelokt HP? don't believe I've seen those.

Winchester 170gr Power Points printed 1 1/2", 5 shot groups at 100 meters from my 1958 M94 .32SPL Carbine - factory sights, compared to RP's Corelokt Scallop Jacketed 170's at 6". I was Impressed with the Winchester ammo.

Once you get the gun together to where it can be ammo tested, I suggest you check the available ammo for the most accurate brand/bullet weight, before regulation becomes finalized.

I like the idea of a fairly light .30/30 - or more probably, I would be more intersted in a .30/40 Krag DR & regulate for 220gr. ST's or Hornady RN's.