>The only repro Walker worth buying is the Uberti. It has the best workmanship, fit, and finish. It has a slightly undersized chamber diameter (.447") but a proper bore diameter (.451") and a rifling twist of 1 in 48" that will work with round ball and short conicals. It is realtively easy to polish the chambers out to the correct diameter of .452" to get them to shoot even better.<
I like the answer, generally, by Curator. Allow me to add one thing: Uberti Walkers are all forged steel for the frame and barrel, and Uberti has a better reputation for the internal parts, too. Many other brands are cast and more than a little suspect. I would suspect that correcting timing issues and rough fit for internal parts would be an expected part of kit building (else, why is it a kit?), the fewer of those that a novice has to deal with, the better.
BTW, I just had a customer service issue with DGW and they were absolutely splendid to deal with. They have great customer service, so BUY FROM DGW.