Results with Savage 12 FV 6.5mm Creedmoor

[CFJunkie]

I thought you all might be interested in some additional data mining from the start through the Jun 6

^th

session.

First by the summary of accuracy results from inception through Jun 6^th based upon action screw torque settings:

All Groups by Bullet- 35 in.-lbs. Torque
Bullet ---------------------Wgt. Avg. -- Median St Dev # Grps. Rank
Hornady ELD-M # 26177 130 0.374 - 0.387 -- 0.074 -- 7 ---- 3
Sierra TMK #7430 ------- 130 0.353 - 0.345 -- 0.059 - 27 ---- 1
Sierra TGK #4330 ------- 130 0.483 - 0.674 - 0.083 -- 3 ----- 9
Berger Match # 26401--- 140 0.384 - 0.364 - 0.101 - 10 ---- 4
Hornady ELD-M # 26331 140 0.405 - 0.385 -- 0.087 - 20 ---- 6
Sierra SMK #1742 ------- 142 0.362 - 0.362 - 0.052 - 25 ---- 2
Hornady ELD-M # 26333 -147 0.396 - 0.387 -- 0.072 - 23 ---- 5 Note 1

-----------------------------Total 0.380 - 0.373 -- 0.075 115
All Groups by Bullet- 45 in.-lbs. Torque
Bullet --------------------- Wgt. - Avg. - Median - St Dev # Grps Rank
Sierra TMK #7430 ------- 130 - 0.406 - 0.411 --- 0.086 ---- 4 ---- 7
Berger Match # 26401 -- 140 - 0.505 - 0.505 --- 0.054 ---- 2 --- 10
Hornady ELD-M # 26331 140 - 0.438 - 0.431 --- 0.059 ---- 6 ---- 8
-----------------------------Total 0.438 - 0.456 --- 0.071 --- 12

Note 1: The 147 gr Hornady ELD-M totals using 35 in.-lbs. torque include the Jun 4^th anomaly group average of 0.534 for 3 groups that really messed up the data for the 147 gr ELD-M when making comparisons.


Without that unexplained disastrous event, the 147 gr ELD-M data and totals would be a more representative statistically, based upon the accepted process control technique to exclude unexplained variations when making comparisons of competing results.
I make this observation because we all occasionally manage to cause anomalies that mess up our conclusions.
If we don’t recognize that one weird session with one load was a variant and an anomaly, our conclusions will be in error.

The revised results for the 147 ELD-M and the totals would move the 147 gr ELD-M from 5^th to 4^th rank ahead of the Berger Match #26401 bullets giving a pretty representative set of data to analyze what bullets shoot best in this rifle:

Hornady ELD-M # 26333 147 - 0.377 - 0.380 - 0.041 -- 20 * 4
-----------------------------Total 0.376 - 0.369 - 0.071 - 112

For analysis purposes, the rank of the 147 ELD-M changes from 5^thto 4^thin the overall order.

But for recording purposes, the uncorrected totals ‘as shot’, including the anomaly group average, stand as a summary of my actual results.