praetorian97 Posted August 21, 2013 Share Posted August 21, 2013 On Henning's website he states in the description of USPSA H-141 : 21 Round 40 S&W Pad..... "To make it USPSA 141.25mm legal you have to shave the back of the magazine slightly to get it into the gauge." Anyone have to do this? Link to comment Share on other sites More sharing options...
praetorian97 Posted August 21, 2013 Author Share Posted August 21, 2013 Rumor has it that could be for his old style mag bases. Link to comment Share on other sites More sharing options...
praetorian97 Posted August 22, 2013 Author Share Posted August 22, 2013 Measured tonight. Mec Gar 40 Cal Magazines. Henning USPSA H-141 : 21 Round 40 S&W Pad The actual pic looks like I was too low but thats after I let the Micrometer rest for the pic. Just under the max for USPSA. Link to comment Share on other sites More sharing options...
kneelingatlas Posted August 22, 2013 Share Posted August 22, 2013 (edited) You need to measure to the top of the lips on back of the mag, it looks like you're in the notch. Edited August 22, 2013 by kneelingatlas Link to comment Share on other sites More sharing options...
praetorian97 Posted August 22, 2013 Author Share Posted August 22, 2013 You need to measure to the top of the lips on back of the mag, it looks like you're in the notch. I measured to the point where the red arrow is. It looks lower cause of the camera angle when I let the micrometer rest. The top of the mag is beveled so the top of the micrometer wont touch it in the resting position for the pic. Link to comment Share on other sites More sharing options...
kneelingatlas Posted August 22, 2013 Share Posted August 22, 2013 Then yes, that's it. Link to comment Share on other sites More sharing options...
bikerburgess Posted August 22, 2013 Share Posted August 22, 2013 on my old style 10mm mags I had to take a little less than a 1/16 of the back of the feed lips to get them to fit the gage. the only way to really tel is to use the actual gage, its the only official measurment tool. Ask arround at the club/clubs you shoot at and I bet you will find one of the clubs or another shooter that has a guage you can use to check them with. Mike Link to comment Share on other sites More sharing options...
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