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Posted: 3/18/2006 12:03:40 PM EDT
[Last Edit: 3/18/2006 1:59:59 PM EDT by pistolwretch]
I see a lot of problems with feeding that can be attributed directly to an improperly machined feedramp.
When the feedramp is done correctly, there is NO need for elevated mag catches or special magazine designs that present the rds higher than original 1911 specs.
Several of the 1911 clones, yes even those by the top of the line semi-custom shops, are crippled by shallow feedramps.
A proper feedramp extends south of the top of the frame to a .420" depth and is cut at 31 to 31.5 degrees. The bottom of the feedramp should be just above the bottom of the slide stop lug cutout.
I've seen guns done by big name shops that have feedramps only .280" deep.
They will work with ball and sometimes with selected hollowpoints through selected magazines, but they still are not 'right'.
I'll take pics of the next one to cross my bench, and of the process to correct the geometry.
__________________
Chuck
www.rogersprecision.com
www.louderthanwords.us


Slightly shallow original feedramp. Measures .335" deep.

http://www.the-gunsmith.com/sarge/forum5-10-05/1.JPG

Setting it up for re-machining at 31.5 degrees.

http://www.the-gunsmith.com/sarge/forum5-10-05/2.JPG

http://www.the-gunsmith.com/sarge/forum5-10-05/3.JPG

After final polishing. Now measures .400" deep.

http://www.the-gunsmith.com/sarge/forum5-10-05/4.JPG

href=forums.1911forum.com/showthread.php?t=121954
Link Posted: 3/18/2006 1:53:08 PM EDT
Thank you for sharing!
Link Posted: 3/18/2006 2:34:49 PM EDT
Big +1 Chuck Rogers. Charles the Gunsmith.
Link Posted: 3/18/2006 2:38:59 PM EDT
Sure looks pretty. What can we use (cheaply) to tell if ours are in spec?
Link Posted: 3/18/2006 2:46:21 PM EDT
Good stuff, thanks for sharing.
Link Posted: 3/18/2006 7:11:24 PM EDT
Hey Yoda, can I move up to Prescott Valley for a little while? My job is getting boring....
Link Posted: 3/25/2006 9:16:28 AM EDT
tag
Link Posted: 3/25/2006 4:26:42 PM EDT
Link Posted: 3/26/2006 3:24:44 AM EDT
I swear, with all the good great information everyone shares on the forum I will be a pistolsmith before you can say "Rock Island Armory".

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