Good day sirs. I recently joined the 1911 fad when i bought my first 1911 in a commander model last gunshow. Last time i posted, i asked for some inputs on what are the 3 must have basic mods for this gun, and to sum it up; most replies includes the sights replacement, springs replacement(recoil 14lbs/hammer 19 lbs/extra power firing pin), and trigger job of about 4lbs. I followed all 3 suggestions and when it was finished, I test fired the gun for 20 rounds of reloads (with new brasses from a reputable source) and the gun performed without any malfunction. Okay pati recoil, sweet. As i've read and heard, my spring set ups requires it to be paired with a compatible ammo which is not too heavy to avoid slide cycling problems and excessive slide-frame battering. Can you please give me sirs the right ammunition specs and brands na pwede kong ma test with this spring set up? Thanks po. Wanna kill these ads? We can help!