Nickb45 Posted February 9, 2016 Share Posted February 9, 2016 I'm building my first limited gun (not my first 1911 style pistol). I'm wondering if anyone has the correct angle for a feed ramp (W/N ramp, 40 S&W). I have a Kart barrel, the ramp angle is at 24 degrees. I know that's way too steep for a regular non ramped barrel for .45 but this ramped barrel and 40 game is new to me. Thanks. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
StraightSh00ter Posted February 11, 2016 Share Posted February 11, 2016 I couldn't find any info on ramp angles for calibers other than .45. I have a 9mm and had to change the barrel ramp angle (un-ramped, but the barrel ramp/throat was still too steep). I found that the .45 frame ramp should be 30.5 degrees and the barrel ramp about 35 degrees, both measured from vertical. However, I decided to just make small changes from where I was to avoid removing too much (or unnecessary) material. I think I ended up pretty close to 30 degrees and it feeds smoother than I could have imagined for such a small change. Link to comment Share on other sites More sharing options...
Nickb45 Posted February 11, 2016 Author Share Posted February 11, 2016 (edited) I laid into it the other night until it fed, ended up at about 27.5 degrees. So far has bench tested on flat points loaded from 1.2-1.06 (a few got short slamming into the feed ramp testing it). Also running on stock STI tubes (not tuned). Sent from my iPhone using Tapatalk Edited February 11, 2016 by Nickb45 Link to comment Share on other sites More sharing options...
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