Hey bigjim,
Jon K was kind enough to send me some projectiles to try in the 38-55. So far I haven't been thrilled at the results but not so bad that I'm ready to make a boat anchor ouy of it either. The Lyman 375449 seems to have shot the best so far but the Magma 250's are close. 4227 is the best powder out of what I'v tried, 18.0grs.
The 300grs seem to be a little wild. I don't have any reloader 7 to try. IIRC that's a good powder to try. I guess the best group has been about 2 inches but that was only once and the others open up a bunch. All are shot at 100yds. If that was consistant I could live with it but I really expect to do better. I have another ubertti in 30-30 that I've shot 1 1/2" groups but put it aside to work with the 38-55 for awhile. I'm still working on it. I'll keep you posted...
Jon K, Thanks for the boolits. I OWE you man and I'll let you know about that item after a few more shooting sessions I hope.