What's the point of 8 million posts of walther factory test targets?
The point is to show an unbiased baseline for accuracy. I could not find any 5" PPQ targets. As soon as I do I'll post them.
What's the point of 8 million posts of walther factory test targets?
A 3"-4" bbl pistol in a ransom rest will not be as accurate as a 4"- 5"" bbl in a ransom rest. More accuracy improvement can be seen normally at about 5" +.. Bullet Ballistics improves quite a bit with added bbl length up to a point.
The information shared here suggests that if everything but the barrel length is the same, the results of a Ransom Rest test might not differ greatly between longer or shorter barreled guns, until barrel lengths are quite different. If we're talking only about an inch or two, the "improvement" in performance due to higher bullet speed and spin rate, etc., may not be significant. It may depend on the load.
Velocity does matter, and discounting that as a factor included with a longer bbl is ignoring the facts. The OP didn't say or ask about velocity.
"Handgun Ballistics per inch of barrel" is an amazing test of virtually all calibers of handguns from .22 to 460 Rowland. using "FIXED" bbls from 2" to 18". Amazingly long distances in the bbls showed continued acceleration and resulting spin of the bullets.
http://www.ballisticsbytheinch.com/
He might have been seeing the Hawthorne Effect -- they bought the shorter barrels expecting better scores and they got better scores.There was also published an article by him in the September 1946 American Rifleman, in which he noted that after over a hundred shooters purchased short-barreled H&R pistols, a majority of the 65 who reported back to him reported better scores with the short pistol.
Yeah -- but no one buys a gun expecting to shoot worse, so the sample consists almost entirely of people who expected to shoot better.
Expectations can drive a lot of results. Your statement above could also be applied to those who KEPT their existing weapons or decided to buy 10" barrels, too. They wouldn'tve bought or kept their 10" guns expecting to do worse...
Actually not -- most of the Hawthorne employees had repetitive tasks and worked on piecework.The Hawthorne Effect really addressed GROUP DYNAMICS and GROUP PRODUCTIVITY and the PERFORMANCE OF TEAMS working on group objectives. In the cases I've cited earlier, there were no teams, just individuals reporting their changed scores -- and it may be that they were unaware of how others using the same barrels were doing...
Actually not -- most of the Hawthorne employees had repetitive tasks and worked on piecework
All perfectly true -- which was my point. The "study" which found there might be an improvement from a shorter barrel showed no such thing, and improvements may have come because the people who bought shorter-barreled guns expected to improve.After posting that "statistic" I mentioned, I got to thinking about what it really told us: that 100 were queried and only 65 responded. Of that 65, it could be that as few as 33 saw improvement. That, in turn, could mean that as many a 67 of the 100 (i.e., 32 + 35) may NOT have seen any improvement.
Statistics can sometimes be interpretations (and intensely subjective). Or, as Mark Twain called it: "Lies, Damned Lies, and Statistics."