D.p. rifle marked nitro proofed?
I found a No.1 Mk 3 in pretty nasty shape for $99, it's my first enfield so I'm still learning about them. This one will be going to an actual gunsmith before I take reddit advice so it doesn't blow up but from my understanding it's a drill practice rifle and shouldn't be shot? The nitro proof stamp means it was tested and sold to a civilian though right? The only things I can tell are wrong with it is a missing bolt head and safety, I can't see any other reason it wouldn't shoot.
The markings are nearly worn off but it's got the crown, G.R., Enfield, 1917, SMLE, III*, D.P. on multiple parts, 44 on the barrel next to .303 and nitro proved. Is there any other important markings I should be looking for?
I got pretty lucky on finding a 1907 bayonet that was also made in 1917 with the British service markings. Working on getting everything else it's missing for now and I'll report back if I can shoot it one day!