I finally broke down and bought another chronograph. I couldn't stand it any longer now that I reload 10mm! The other one, let's just say, met an unfortunate and tragic end several years ago.
Here's some recent chronograph results. I would appreciate your helpful experience and feedback. Are these velocities what you have seen or expect?
11-06-2014, 70 degrees, 3:00-4:00 PM
Shooting Chrony F1 Master Chronograph, 10 feet
Pistol: Kimber STII 10mm w/5" barrel
180gr XTP JHP, 9.2gr Longshot, CCI LPP, Starline Case, 1.255" OAL
Low: 1249 fps
High: 1302
Avg: 1266
Notes: Strong sharp recoil, excellent accuracy, reliable feeding
180gr XTP JHP, 8.5gr Power Pistol, CCI LPP, Starline Case, 1.250" OAL
Low: 1185 fps
High: 1242
Avg: 1208
Notes: Mild recoil, excellent accuracy, reliable feeding, lower than expected fps
180gr Remington UMC Factory Load (FMJ FP, Nickel case)
Low: 1096 fps
High: 1126
Avg: 1117
Notes: Low recoil, good accuracy, lower than expected fps, reliable feeding
180gr plated FP, 7.5gr Power Pistol, Win LPP, Starline case, 1.250" OAL
Low: 1042
High: 1094
Avg: 1067
Notes: Light recoil, good accuracy, reliable feeding, good plinking load
All loads are within load book data and none showed signs of excessive pressure.
9MM
Pistol: Glock 17 (Gen 4) w/4.5" factory polygonal barrel
124gr Remington FMJ RN, 6.0gr Power Pistol, Win case, FC SP primer, 1.150" OAL
Low: 1175
High: 1220
Avg: 1203
Notes: Medium 9mm recoil, good accuracy, reliable feeding, 9mm NATO equivalent load?, max load but no signs of excessive pressure
10mm-Admirer, Thanks for the great report!
For comparison:
10mm sheet: https://docs.google.com/spreadsheet/ccc?key=0Ak5OC6bPsjO8dEh6eGZ3N3hpUU13SXM5cm9pZy16T0E&usp=drive_web#gid=6
9mm sheet: https://docs.google.com/spreadsheet/ccc?key=0Ak5OC6bPsjO8dC04eEk2U2xaYXJLVGppTHMtQWJISHc&usp=drive_web#gid=5
I can't speak for your reloads because I have never used those powders. But your UMC velocity average is within one foot per second of my UMC average.
That's good to know. Amazing consistency! I hope the other loads' velocities are as accurate.
I chronographed some of the same loads through a like new Gen 4 G29 compact I traded for recently. It has a 3.75" stock Glock barrel. The Chrony seemed to be working very well today with only a couple of error readings.
12-4-2014
2:30pm overcast sky, 65 degrees
Shooting Chrony 10ft
Remington UMC 10mm FMJ FP
Avg: 1031 fps
Hi: 1049
Lo: 1009
ES: 40
Notes: Lower velocity factory load
180 XTP, 8.5gr Power Pistol, Starline case, CCI primer, 1.250" OAL
Avg: 1104
Hi: 1123
Lo: 1088
ES: 35
Notes: Moderate recoil, Hornady 180gr XTP Critical Duty equivalent load that had good penetration on YouTube test.
180 Nosler JHP, 9.2gr Longshot, Starline case, CCI primer, 1.255" OAL
Avg: 1160
Hi: 1166
Lo: 1155
ES: 11 !!!
Notes: Strong sharp impulse recoil. Good widely used load.
180 Hornady FMJ FP, 9.2gr Longshot, Starline case, CCI primer, 1.255" OAL
Avg: 1164
Hi: 1184
Lo: 1153
ES: 31
Notes: Strong sharp impulse recoil. Good widely used load.
Hornady Critical Duty 175gr FlexLock 10mm
Avg: 1054
Hi: 1060
Lo: 1047
ES: 13 !!!
Notes: Moderate recoil. Lower velocity. Good penetration on YouTube test. Met velocity listed on box.
Conclusion: Loads showed 50-100fps less velocity in shorter 3.75" barrel than 5" barrel. The 8.5 Power Pistol and 9.2 Longshot loads are great. Glock 29 is a handful but powerful and controllable.
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Excellent follow-up post! Thanks for sharing with us. One of these days I think I am going to get myself a Glock 29 too!
My EDC is a G29sf gen 3 - I load my own 10mm - from mid range to hot - hot - but not nuclear - Had a h*ll of a time hanging on to it. These loads where for my G20sf gen 3 with a 6.6 inch barrel. So I had to modify my 29 to match my G20 (close enough to handle these loads ) and this is what I came up with, and it handles these loads almost as good as the G20.
(http://i283.photobucket.com/albums/kk296/SDS47/10MM/G29sfCCW.jpg) (http://s283.photobucket.com/user/SDS47/media/10MM/G29sfCCW.jpg.html)
One of my loads ( 180gr HCFP - 13gr 2400 ) Caused me to change change the 29.
Doug