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View Full Version : 9mm chrono results from three Glocks: Gold Dot, HST, Underwood



Joe Mac
02-04-2020, 05:45 PM
01/28/20
51 degrees, clouds/drizzle
Shooting Chrony F1 @10’ from muzzle

Glock 26:

Speer Gold Dot 124+P
High 1174
Low 1117
Avg 1142
ES 57
SD 21

Federal HST 124+P
High 1208
Low 1185
Avg 1200
ES 23
SD 9

Federal HST 147
High 1025
Low 986
Avg 1002
ES 39
SD 14

Underwood 147+P Coated Hard Cast
High 1090
Low 1054
Avg 1070
ES 36
SD 12


Glock 43X:

Speer Gold Dot 124+P
High 1157
Low 1136
Avg 1147
ES 21
SD 9

Federal HST 124+P
High 1222
Low 1194
Avg 1210
ES 28
SD 11

Federal HST 147
High 998
Low 983
Avg 988
ES 15
SD 6


Glock 48:

Speer Gold Dot 124+P
High 1205
Low 1189
Avg 1195
ES 16
SD 6

Federal HST 124+P
High 1250
Low 1213
Avg 1234
ES 37
SD 14

Federal HST 147
High 1043
Low 999
Avg 1023
ES 44
SD 16


Notes:
- All samples of each load were from the same box, for comparison between guns.
- This is a fairly slow lot of Gold Dot 124+P, in my experience; I've seen slower, but I usually get around 1175 from a G26.
- Interesting comparison between G26 and G43X, with the same barrel length: the 43X was a little faster with 124+P, but slower with 147. This particular 43X also seems slightly more accurate with 124+P, although I haven't wrung it out enough to be sure...
- The Underwood hard cast stuff was just a little smoky, not objectionably so, and quite controllable. I need to do a bit of training and function testing with this load, but it may become my go-to outdoors load. (For the rare occasions I leave the urbs/suburbs.. :rolleyes:)

lyodbraun
02-04-2020, 07:22 PM
Great info thanks for the effort put into your data and for posting your results...

Joe Mac
02-04-2020, 08:11 PM
You're welcome.

I forgot to mention (and I'm not seeing an edit icon): these are all 5-shot averages, except the Underwood, which was 10.

03RN
02-05-2020, 03:09 PM
Any chance you got your screen name from "Last of the Breeds" Joe Mackatozi?