Thread: A day at the range....

Went to the range today to play with gimp's magnetospeed chronograph. Took a few rifles... Really liked the unit... Results were very similar to what I was getting with my cheap one though.

280 Weatherby Mkv Ultra light.
20" barrel now with a DPT can, Talley rings and a Nightforce 2.5-10x32. The load is 162gr amax's in front of some ar2209.

Rifle

5 shot group from today with the magnetospeed attached.

Speeds (fps)were as follows:
2711
2750
2741
2737
2730
Avg: 2733
S-d: 14.6

243. Sako 75. 20" barrel with a DPT can, optilocks and a vortex viper PST 4-16x50. The load is a 105gr targex in front of some ar2209.

Rifle.

5 shot group from today with the magnetospeed attached.

Speeds (fps) were as follows:
2938
2956
2953
2949
2943
Avg: 2946
S-d: 9.5

6.5x55. Mauser M12 with a Atec can, weaver rings and a Bushnell 6500 2.5-16x50. The load is a 140gr amax in front of some ar2209.

Rifle.

6 shot group from today with the magnetospeed attached.

Speeds (fps) were as follows:
2755
2724
2749
2750
2669
2724
Avg: 2728
S-d: 32.1

All in all it was great fun and I'm super happy with the results. @gimp your chronograph was not harmed in making this post...

I guess the problem with testing two different chronys is you don't know which one is the most accurate anyway? Unless your doing long shots to measure the drop of the round vs bc etc so you know mathematically how fast the bullet left the rifle.

Good.

Originally Posted by Wildman

Went to the range today to play with gimp's magnetospeed chronograph. Took a few rifles... Really liked the unit... Results were very similar to what I was getting with my cheap one though.

Some good results there.
The difference you will find between your cheap chronograph (and even the dearer optical ones) and the MS is that with the optical ones you can get different results day to day with the same loads. Due to different lighting conditions mainly.

good work, 6.5 mauser, loverly.