I recently bought a new 3rd generation Glock 29 SF, the fired case envelope was dated 11-11-11. I have the green front with yellow rear Meprolight night sights on it. I've shot 40 rounds of Hornady 155 gr. XTP plus 80 rounds of my handloads* through it, so far. After 120 rounds, the only problem I've had is the slide locks back with one round left in the magazine; this happens consistently with both flush magazines that were supplied with the pistol. However, I bought an extra magazine with a Pearce +0 pinky rest base plate and it works perfectly. Obviously I'm going to try Pearce base plates on the other two magazines hoping to solve the problem; although I'm not sure how the base plate would have anything to do with the slide locking open. Yesterday I chronographed the Hornady factory loads and my initial handloads* with the same 155 gr. XTP bullet. (average for 5 shots). Hornady 155 gr. XTP @ 1,279 fps Handload* 155 gr. XTP, 12.4 gr. AA#7, Winchester primer, new Starline brass @ 1,232 I wanted to approximate the factory loading, so I went ahead and loaded my handloads* with the maximum listed charge of 12.7 gr. AA#7 Today I chronographed the factory load again and my new handload* (average for 5 shots). Hornady 155 gr. XTP factory load @ 1,267 fps Handload* 155 gr. XTP, 12.7 gr. AA#7, Winchester primer, new Starline brass @ 1,244 I mixed the factory ammunition and my handloads* in the magazine and preceived recoil impulse was equivalent. The Hornady 155 gr. factory load is living up to the advertised velocity on the box of 1,265 fps even from the "short" barrel of the G29. Recoil in the Glock 29 (using the loads I tried) seemed comparable to a Glock 36 or 3'' 1911 aluminum frame 45 acp with 230 gr. ammo; I no longer have those pistols for a direct comparison, but that's my subjective impression. Objectively, I did chrono that G36 when I had it. G36: Winchester 230 gr. Ranger T @ 874 fps / 390# KE / PF 201 G29: Hornady 155 gr. XTP @ 1,279 fps / 563# KE / PF 198 Using the power factor calculation, my subjective impression of recoil is supported by the numbers. Uploaded with ImageShack.us *Handload data provided for ballistic information & comparison only. CDW4ME does not imply that these loads are safe for you to assemble & shoot. Handloading is potentially dangerous and you should not do it. You should just stick with factory ammo.