I had one that had been a gunshop project, a blow up test of sorts, it was a long rifle, cut and crowned just to remove the front sight, the rear of the receiver hogged out for extra length and the trigger /sear cut at front as well, with a spring added at the rear, it had a n excellent bore, and was rechambered to 264 win mag, bolt face opened, bolt srop /ejector severely modified, and themag box altered, rails opened, it fed it fired, it was glassed into a springfield stock, with a bit of iron behind the recoil lug, 100's of rounds of factory,ww, and handloads with compressed charges of 870,and 4350 behind 160 grain bullets were fired, never cratered a primer, never had a n extraction or headspace problem, some years ago I put it in a bishop cherry stock and traded it to a guy going to alaska on the pipeline project, the chief culprit in the original build was Dick Campbell, a custom gunsmith and knifemaker from Colorado, now in Wa I believe, the 38 never seemed slick or smooth, unless tou compared them to a 99, or maybe a Russian, I have a barreled action now. not vety restorable, thinking of 6.5 swede, 260 remmy, or a rebarrel to 450 marlin, have fun!