The Firing Line Forums - View Single Post

dmazur · July 18, 2010, 05:29 PM

I just had a similar problem with Hornady 230gr XTP's in an Officer's Model. No trouble in 2 different Commander length 1911's.

The more rounded profile of some other hollowpoints works OK, and factory FMJ works OK.

Rainier plated 230gr RN also caused some trouble. Profile isn't as "round" as the FMJ's I'm used to.

This was with Chip McCormick magazines in all three 1911's, with the "parallel" feed lips.

The slightly nonstandard bullet profile appears to try to make the cartridge rise out of the magazine too soon, before it can clear the feed lips.

Seating slightly shorter solved the problem with both bullets. (XTP's at 1.200", Rainier RN at 1.260")

Magazines with tapered feed lips may also solve the problem, but I didn't try that...

July 18, 2010, 05:29 PM	#13
dmazur Senior Member Join Date: July 5, 2007 Location: Pacific NW Posts: 1,310	I just had a similar problem with Hornady 230gr XTP's in an Officer's Model. No trouble in 2 different Commander length 1911's. The more rounded profile of some other hollowpoints works OK, and factory FMJ works OK. Rainier plated 230gr RN also caused some trouble. Profile isn't as "round" as the FMJ's I'm used to. This was with Chip McCormick magazines in all three 1911's, with the "parallel" feed lips. The slightly nonstandard bullet profile appears to try to make the cartridge rise out of the magazine too soon, before it can clear the feed lips. Seating slightly shorter solved the problem with both bullets. (XTP's at 1.200", Rainier RN at 1.260") Magazines with tapered feed lips may also solve the problem, but I didn't try that... __________________ .30-06 Springfield: 100 yrs + and still going strong