XBR-8208 Standard Deviation

K

Kim Merrill

Guest
I have complied my test information from yesterday and wanted to compare my SD numbers with with your test results.

Conditions were windy with temps in the mid 40's.

All of the cartridges were weighted to within .05gn of each other and
all of the XBR-8208 loads were weighed to .00 utilizing a Acculab Vic-123 scale.

30.50=3222 18.8 SD 5 shots
30.75=3240 10.4 SD 5 shots
31.00=3271 4.8 SD 5 shots
31.50=3341 24.1 SD 3 shots
31.50=3349 9.3 SD 3 shots
31.50=3335 11.4 SD 3 shots

9 shot SD for 31.50 14.6

31.80=3362 12.3 SD 3 shots
31.80=3365 9.8 SD 3 shots

6 shot SD for 31.80 9.21

The 31.50 produced the best groups
 
Additional information ES

30.50=3222 18.8 SD 5 shots ES 51
30.75=3240 10.4 SD 5 shots ES 22
31.00=3271 4.8 SD 5 shots ES 14
31.50=3341 24.1 SD 3 shots ES 44
31.50=3349 9.3 SD 3 shots ES 18
31.50=3335 11.4 SD 3 shots ES 21

9 shot SD for 31.50 14.6

31.80=3377 13.1 SD 5 shots ES 34

31.80=3362 12.3 SD 3 shots ES 23
31.80=3365 9.8 SD 3 shots ES 19

6 shot SD for 31.80 9.21
 
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