spitfire_er
Silver $$ Contributor
In an effort to make finer, higher quality custom rifles, I picked up a surface grinder. Among the million other uses, I plan to grind a few old M1917 style recievers OD. While this won't be my first project on the grinder or nowhere near my first rifle build I was wondering if i could get some pointers on grinding recievers.
While I do have a rotary table i was wondering what the most common way to do it is. Just thinking in my mind, I would think after mounting the reciever in whatever fixture, you would also contour an OD cutting concave radius on the stone with a radius dresser to match the desired radius. Of course this would be done after getting everything very close on the mill. While I have done both flat and radiused rear bridges, I tend to do a radiused rear bridge more often than not. My past work has been done on the mill with final fitting by hand with radiused rings, and just milled with flat ones. My goal is to get better finishes quicker and more accurate without all the hand work. A quick cleanup up front will be nice too for consistancy.
Any advice would be appreciated.
While I do have a rotary table i was wondering what the most common way to do it is. Just thinking in my mind, I would think after mounting the reciever in whatever fixture, you would also contour an OD cutting concave radius on the stone with a radius dresser to match the desired radius. Of course this would be done after getting everything very close on the mill. While I have done both flat and radiused rear bridges, I tend to do a radiused rear bridge more often than not. My past work has been done on the mill with final fitting by hand with radiused rings, and just milled with flat ones. My goal is to get better finishes quicker and more accurate without all the hand work. A quick cleanup up front will be nice too for consistancy.
Any advice would be appreciated.