Most of the literature I have read concerning powder states that you are most likely to find the best accuracy nearer to the starting load than max. but after three years of reloading for various hunting rifles I have found that in most of the bolt actions I have reloaded for my best accuracy usualy came, closer to max., most of the time within a grain or less. Anyone else had simular experiences?
I agree, I have noticed that most of my best loads are just a couple grains under max. I like to reach absolute max in my rifles, which is usually over book max, then I know where I am. But my most accurate loads are almost always just under book max, and not my rifles max.
I more often find accuracy near maximum than with milder loads. This MAY have something to do with the heavier charge of powder more nearly filling the case, which promotes more consistent ignition and burning. Also, I have had better luck with a slow-for-caliber powders which completely fill the case or may be slightly compressed than with faster powders which leave significant air space in the case.
The use of relatively faster powder (which requires less powder, and is therefore less expensive per shell) is one thing which is disadvantageous in factory loads (in my admittedly prejudiced opinion). You know what I mean -- shake a standard factory load and you can hear/feel the powder rattling around in there.
Posts: 13339 | Location: Henly, TX, USA | Registered: 04 April 2001
Don, Very interesting, sound like it has merrit, The only thing that has me puzzled about it is that what if your best accuracy is near max would the fouling from the 20 prior shots scue the results? "MAYBE" and I'm definetly no expert, it would be best to go with 3 fouler shots, 10 group shots, then clean and do step one over with the remaining 13 shots or does anyone think that the fouling wouldn't be an issue in this type of test.
