Hey all, was hoping you fine folks could help me take a look at some range data. To this point I've loaded a shot a whole bunch of rounds of different bullet/powder combos, and want to start fine-tuning what I have. For whatever reason, the next steps of load development eludes me, even after watching numerous videos and reading as much as I can on it. I've put too much emphasis on group size, but I know that velocity matters more, and groups can be adjusted based on seating depth. I'm a hands-on learner, and think that it'll click once I get some feedback on rounds that I've actually loaded and put downrange, as opposed to looking at numbers and charts of other people's data.
Below is the data for one of the reloads, based on your thoughts I'll extrapolate that to my other loads. Any guidance would be much appreciated, thanks in advance!
140gr Berger Hybrid Target
H4350
CCI BR2 primers
Hornady 1x fired brass
CBTO - 2.303"
Rifle - Tikka T3x CTR w/ 20" barrel
Below is the data for one of the reloads, based on your thoughts I'll extrapolate that to my other loads. Any guidance would be much appreciated, thanks in advance!
140gr Berger Hybrid Target
H4350
CCI BR2 primers
Hornady 1x fired brass
CBTO - 2.303"
Rifle - Tikka T3x CTR w/ 20" barrel
| Grain Powder (gr) | 37.8 | 38.1 | 38.4 | 38.7 | 39.0 | 39.3 | 39.6 | 39.9 | 40.2 | 40.5 | 40.8 | 41.1 |
| Shot # | ||||||||||||
| Group In | 0.834" | 0.514" | 0.259" | 0.444" | 1.054" | 0.628" | 0.173" | 0.630" | 0.785" | 0.738" | 0.819" | 0.895" |
| Group MOA | 0.797 | 0.491 | 0.248 | 0.424 | 1.007 | 0.6 | 0.165 | 0.602 | 0.75 | 0.705 | 0.783 | 0.855 |
| Shot 1 | 2364 | 2377 | 2397 | 2415 | 2446 | 2466 | 2484 | 2490 | 2528 | 2507 | 2569 | 2556 |
| Shot 2 | 2335 | 2339 | 2415 | 2418 | 2476 | 2460 | 2465 | 2485 | 2513 | 2501 | 2559 | 2574 |
| Shot 3 | 2328 | 2360 | 2411 | 2460 | 2458 | 2462 | 2492 | 2499 | 2548 | 2545 | ||
| Sum | 7027 | 7076 | 7223 | 4833 | 7382 | 7384 | 7411 | 7467 | 7540 | 7556 | 7673 | 5130 |
| Mean: | 2342.3 | 2358.7 | 2407.7 | 2416.5 | 2460.7 | 2461.3 | 2470.3 | 2489.0 | 2513.3 | 2518.7 | 2557.7 | 2565.0 |
| Median: | 2335.0 | 2360.0 | 2411.0 | 2416.5 | 2460.0 | 2460.0 | 2465.0 | 2490.0 | 2513.0 | 2507.0 | 2559.0 | 2565.0 |
| Min: | 2328.0 | 2339.0 | 2397.0 | 2415.0 | 2446.0 | 2458.0 | 2462.0 | 2485.0 | 2499.0 | 2501.0 | 2545.0 | 2556.0 |
| Max: | 2364.0 | 2377.0 | 2415.0 | 2418.0 | 2476.0 | 2466.0 | 2484.0 | 2492.0 | 2528.0 | 2548.0 | 2569.0 | 2574.0 |
| Shot # | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A | #N/A |
| Standard Deviation (SD): | 15.6 | 15.5 | 7.7 | 1.5 | 12.3 | 3.4 | 9.7 | 2.9 | 11.8 | 20.9 | 9.8 | 9.0 |
| Extreme Spread (ES): | 36.0 | 38.0 | 18.0 | 3.0 | 30.0 | 8.0 | 22.0 | 7.0 | 29.0 | 47.0 | 24.0 | 18.0 |
