I had made one attempt at bushing the strikers similar to the method used in the book, Building Double Rifles on Shotgun Actions, but it was a little more than what I could do with hand tools.
And yes, aside from attaching the barrels to the monoblock, all the rest of the fitting, shaping, etc have been done by hand. Radii on the ribs, fore end hooks, and working on front sights now, all with hand tools.
The octagonal barrels on the 45 build were done by hand, and that took a while. But I have a good collection of files.
The action that I attempted the bushing on has been shelved for now, and I've come up with some solutions I should be able to complete by hand, but at that point, I plan on something will a little more guts.
My hope is that this project will be feasible for use with the lower pressures and mil-spec primers which should alleviate primer rupture and flow problems.
ETA: I'm not opposed to the resignation that the 30-30 part may not be feasible. I put a lot of consideration into the factors involved and have noted that pressures in the +30K range are not acceptable for this, and pressures at 20K seem to be working ok. So if it can be made to work, than great. If not, then I still have the 45 that will make this project a success.
If the consensus that an adequate 50-100 yd deer round cannot be obtained within the limitations set, than that's life. I'm not hellbent on it. Just want to feed on the experience of those that have been there/done that. Real life experience - even someone elses, trumps conjecture at any level.