Hudson steel greasegun, had this for some time and fettled with it for ages trying to get it to fire. Well not so much fire but load and eject as it fired fine but never more than 2 rounds, it would always jam or fail to blow back enough or the mag dropped slightly.
So what to do, well only one thing take it to 8ace as he always seems to be able to pinpoint the exact problem or problems and come up with a cure.
So greasegun left and a few weeks later as if by magic i have a working steel greasegun and i dont think there are that many around. It seems some adjustment in the trigger housing was needed as it had slight movement allowing the mag catch to move and the mag drop causing feeding problems. That s a problem i had no clue about i just thought worn mag release, now the mag locks firmly in to place.
Next the chamber needed recessing a little to allow the rounds to feed in smoother and that i think was that. Makes it sound simply but even the simple jobs on these can be a pain, so thanks 8ace for another great job.
Well you can see how it fires and its really good, 8ace thinks the rate of fire is a little slow but i am not so sure, the real greasegun had a low cyclic rate and i think the rate of this one sort of matches. The bolt is the original Hudson zinc but is old zinc and a hell of a lot tougher than new bolts, so as yet no damage to bolt head. I have found that you really need to have clean well lubed rounds or you get misfires, some caps were old so did just went pop no blowback, others the piston did not go fully up the round so again no full blowback, those were the only reasons it jammed or failed to fire when the round worked perfectly so did the gun, so its very round sensitive.
As for rounds the ones used were mullberryfield, you need a shaped bullet head to feed so MGC Thompson 45’s dont work. I will try c-tek and the CAW geasegun ones as i think i may have success with those and blowback might be better than mullberryfield.
https://youtu.be/qi2czgFxrKU