i think that corrosive is actually a better idea in a 1919 than non corrosive since ammo is so much cheaper. these things really are a bullet hose.
once you see how fast 250 rounds goes you will laugh at the thought of shooting anything but cheap corrosive stuff. plus the barrel comes completely out of the gun so cleaning that is no problem. then just wipe down the rest of the reciever box and and bolt, etc, with ammonia and water mix (and the barrel first) you will be fine. the robustness of the guns design is also a reason to feel safer shooting corrosive and old and therefore "riskier ammo" if one goes kb, there is think steel all the way around except down, but that will be pointing towards the ground anyway.
once you see how fast 250 rounds goes you will laugh at the thought of shooting anything but cheap corrosive stuff. plus the barrel comes completely out of the gun so cleaning that is no problem. then just wipe down the rest of the reciever box and and bolt, etc, with ammonia and water mix (and the barrel first) you will be fine. the robustness of the guns design is also a reason to feel safer shooting corrosive and old and therefore "riskier ammo" if one goes kb, there is think steel all the way around except down, but that will be pointing towards the ground anyway.