DrMike
Ballistician
- Nov 8, 2006
- 37,825
- 7,560
That is some fine riflery. Excellent work all the way around.
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Excellent resultsI finished load development with my 7 PRC, found a lot more successful grouping when I dropped the powder charges and sacrificed some velocity. I ended up with 62.4 gr of H4831sc in peterson brass shooting a 168 gr Barnes LRX.
2868 FPS
ES: 28.6
SD: 9.8
First picture is a 10 shot group at 100, second is a 4 shot group at 300, just over an inch.
H4831sc just seems to shoot well. What ambient temperature were you shooting these groups at? I noticed that my zero shifted slightly from 55 to 98 degrees, but speed stayed consistent with a 20-shot average, although the SD and ES were a little higher with the added heat. Very dry and hot in West Texas, so load stability with variable temperatures was most essential for me. That first group is phenomenal. How does the ABLR perform on a game? I have a box, but I haven't loaded anything with it yet.Thought I'd share some load results.
Bergara HMR Carbon 24" barrel with TBAC Ultra 7
175gr ABLR
64.0gr H4831SC
Hornady brass
CCI250
2872 fps, 5.8 SD
0.35" group 3 shots. I shot a sub 1/2 MOA group right after this one with 64.3gr charge and the velocity average was the relatively the same.
168gr ABLR
65.7gr H1000
Hornady Brass
CCI250
2871 fps, 5.1 SD
1.03" group, 3 shots. There's room to play with this load, but this is the accuracy node as I worked up in charge weight.
150gr ELD-X
67.8gr H1000
Hornady Brass
CCI250
2971 fps, 19.1 SD
1.08" group, 4 shots. One I threw I called it before it even hit paper. 0.93" group without the flier. This was the accuracy node and I had a lot of upper end play room to go hotter. This load is really soft and basically 3000 fps. Not sure I want more from it really.
roughly 80-85 degrees F and at least 50% humidity. It's Missouri, we can almost swim in the air. I haven't shot an animal with an ABLR set, but it's bonded and accurate. I'm not concerned.H4831sc just seems to shoot well. What ambient temperature were you shooting these groups at? I noticed that my zero shifted slightly from 55 to 98 degrees, but speed stayed consistent with a 20-shot average, although the SD and ES were a little higher with the added heat. Very dry and hot in West Texas, so load stability with variable temperatures was most essential for me. That first group is phenomenal. How does the ABLR perform on a game? I have a box, but I haven't loaded anything with it yet.
Haven't measured to be honest. I am having sub-MOA results with the Hornady ELD-Xs, so I went with the same OAL as factory. I do know that consistently over multiple calibers the Nosler bullets have all wanted to jump 0.050" ish. So I let them jump and don't get overly concerned about it until I want to refine a load I know is on the accuracy node. These are hunting rounds for me. If I'm shooting MOA and the SD isn't over 20ish it's going to be fine. I get more picky with competition loads.How far off the lands are those 175 ABLRs?