M53 receiver dimension after welding
Posted: Wed May 09, 2012 7:50 pm
OK got my mid section welded up and the dimension from backside of the camming box I get 380mm and I also have to preload the recuperator pin to install it in the receiver side bolt hole. Some how after I tig it up it shrunk in length. When I spot welded it up I had a set of rails in it and the recuperator. I hope I do not have to cut and reweld.
jbaum wrote:I don't know if this measurement is posted anywhere... I looked briefly and didn't find it. This dimension is listed in a section about replacing the Cam Piece in the MG42 armorer's manual I'm working on. I checked the dimension on my MG42 original (never welded) receiver and it's accurate.
The distance from the rear edge of the receiver (buttstock end, with stock and base piece removed) to the rear of the rectangular openings where the ramps of the cam piece stick into the receiver = 382 mm. The spec says it can be short by 0.2 mm.
I thought that'd be a good measurement to have when welding up those receiver pieces.
jbaum wrote:I don't know if this measurement is posted anywhere... I looked briefly and didn't find it. This dimension is listed in a section about replacing the Cam Piece in the MG42 armorer's manual I'm working on. I checked the dimension on my MG42 original (never welded) receiver and it's accurate.
The distance from the rear edge of the receiver (buttstock end, with stock and base piece removed) to the rear of the rectangular openings where the ramps of the cam piece stick into the receiver = 382 mm. The spec says it can be short by 0.2 mm.
I thought that'd be a good measurement to have when welding up those receiver pieces.