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Some time ago, I posted about the method I have used for inserting feedramps with steel, in aluminum frames. I said at that time that I would make pics available of the job I was doing at the time. I stopped posting for a while (was posting as ciao-kapow at the time). That job came and went. Here are some pics of another one:
1. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482593
2. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482596
3. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482598
I have given the links rather than post the pics so as not to prolong the download time for those who maybe don't care to see the pics.
Anyway-- although this method is a lot of work, it is tight, secure, positive, and.... hey, what the... this forum doesn't even have a thesaurus feature!?
Pic 1 shows it installed. The frame has been colored red for contrast. Pic 2 shows the insert all by itself, pic 3 shows the pocket for the insert. As you can see, the insert goes into sort of a modified "T" slot that is parallel with the magazine chute. It is held from coming back up by (besides being pretty much a light press fit) a 5/64 pin which runs fore/aft. This pin hole starts on the surface upon which the barrel's bottom lugs bang-off, goes through this area of the frame, and into the insert. The hole steps down to 1/16 before it breaks through to the rear of the insert (which break-through ocurrs well below any part of the ramp that would ever be touched by a feeding round). This way, the pin could never move rearward and fall into the mag chute. In the front, it gets staked in, which you could say was kinda redundant since the barrel bottom lugs would not permit it to come forward enough to fall out. The pin itself is somehat redundant as the insert, even it it were loose, could not move up far enough to come out as it does comprise part of the barrel bed; the barrel contacts it and would tend to encourage it downward. I believe the light press fit would probably do the deal, as the round feeding up does not impart much upward force on it but of course we don't want to be betting somebody's life on that (dry-cycling with no pin in place, it doesn't move; I will live-fire this one just for the hell of it and come back to fess up if it moves).
The hole in the bottom of the pocket for the insert is just for knocking-out the insert during fittein etc. That hole is .070 and terminates in the top of the trigger track.
The insert is made out of a prehardened tool steel (40 Rockwell).
I still have not seen the other method(s) of inserting and I'm sure they're fine... and probably less work...but this was my solution.
1. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482593
2. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482596
3. http://albums.photopoint.com/j/View?u=1514448&a=11442751&p=48482598
I have given the links rather than post the pics so as not to prolong the download time for those who maybe don't care to see the pics.
Anyway-- although this method is a lot of work, it is tight, secure, positive, and.... hey, what the... this forum doesn't even have a thesaurus feature!?
Pic 1 shows it installed. The frame has been colored red for contrast. Pic 2 shows the insert all by itself, pic 3 shows the pocket for the insert. As you can see, the insert goes into sort of a modified "T" slot that is parallel with the magazine chute. It is held from coming back up by (besides being pretty much a light press fit) a 5/64 pin which runs fore/aft. This pin hole starts on the surface upon which the barrel's bottom lugs bang-off, goes through this area of the frame, and into the insert. The hole steps down to 1/16 before it breaks through to the rear of the insert (which break-through ocurrs well below any part of the ramp that would ever be touched by a feeding round). This way, the pin could never move rearward and fall into the mag chute. In the front, it gets staked in, which you could say was kinda redundant since the barrel bottom lugs would not permit it to come forward enough to fall out. The pin itself is somehat redundant as the insert, even it it were loose, could not move up far enough to come out as it does comprise part of the barrel bed; the barrel contacts it and would tend to encourage it downward. I believe the light press fit would probably do the deal, as the round feeding up does not impart much upward force on it but of course we don't want to be betting somebody's life on that (dry-cycling with no pin in place, it doesn't move; I will live-fire this one just for the hell of it and come back to fess up if it moves).
The hole in the bottom of the pocket for the insert is just for knocking-out the insert during fittein etc. That hole is .070 and terminates in the top of the trigger track.
The insert is made out of a prehardened tool steel (40 Rockwell).
I still have not seen the other method(s) of inserting and I'm sure they're fine... and probably less work...but this was my solution.