Got a chrono for Christmas, and went and ran some of my reloads over it today. ALL of the below loads are OVER book max, some by nearly a full grain. All were shot out of a completely stock Glock 20. The 155's were doing about what I thought they would be. NO signs of pressure, so I'm going to try 10.5gr next time. If I can get these to 1400fps, I'll be happy with them. Shouldn't be hard to do. The 180's, I was expecting a little more from...atleast a solid 1300 fps. With that said, 1280 is plenty fast enough, and I'm not going to try to push them any harder. Getting a very slight smiley on about 1/3 of the brass, and slightly flattened primers. Nothing terrible, but enough where I don't want to push any harder. A little disapointed in both 200gr loads. I would have sworn they'd have done atleast 1150 for the XTP's and 1200 for the FMJ's. Neither show any signs of pressure though, so I'll bump both up by .2 to .3 grain and see what happens. I'd like to get both close to 1200, but would be happy with 1175. 155gr XTP -10.2gr PP -1.26 OAL -Min - 1347 fps -Max - 1380 fps -Average - 1360 fps 180gr XTP -9.5gr PP -1.26 OAL -Min - 1263 fps -Max - 1292 fps -Average - 1280 fps 200gr XTP -8.0gr PP -1.26 OAL -Min - 1105 fps -Max - 1126 fps -Average - 1115 fps 200gr Hornady FMJ -8.3gr PP -1.26 OAL -Min - 1119 fps -Max - 1160 fps -Average - 1135 fps Chrono'd several factory rounds as well. PMC 200gr FMJ averaged 1020 fps. Extremely consistant ammo. ES was 6 fps. Blazer Aluminum 200gr, TMJ, averaged 928 fps. Remington 180gr FMH averaged 1055 fps. ES was 5 fps. Underwood 180gr JHP averaged 1300 fps. ES was fairly high though, at 137 fps. Winchester 175gr Silvertips averaged 1161 fps. Not a suprise at all as I've seen plenty of other people chrono this stuff. Norma 170gr JHP averaged 1218 fps. As highly as the original Norma loading is spoken of, I don't find this very impressive at all. Norma 200gr FMJ. The biggest disapointment of the day! It averaged 1007 fps.