The first doesn't really advocate the hose effect, he's saying something different just easily misunderstood.
Quite so! I have seen a film, shot at Fort Benning in the USA, I believe it is the US Army marksmanship cente. It clearly shows the shot string effect, nothing like a hose pipe though! It clearly showed that barrel constriction,cartridge speed and barrel movement had a marked effect on shot patterm, deformation and string. OK there are some that may not believe it, however a great many experienced coaches , shooters and scientists do believe it and have scientifically proved it. I don't really know where marketing would come into it though, I've never seen anyone use that angle as far as I can remember. If I can find a link to the US Army film about it I will send you a link, it's very interesting, BUT a hosepipe it is not ! :wink:
As you will know from reading Chris Bathas book...shot velocity only makes inches of differences with regards to "forward allowance". FBlacks are a faster cartridge, designed to hit harder. Obviously, this is different to the difference between a 24g and 28g cartridge...the 28g feels harder, because you are shoving a heavier load out the end of the gun, which pushes back harder and you also need more oomph to send it out at the same velocity, so that equals more kick too. What you want, is a 24 or 28g cart, with decent hard shot. You can make up for softer shot, by sending it faster, which is what the cheaper cartridges will do. An expensive, High Brass cartridge, may be softer than the cheaper version, because it uses a slower burning powder, which are more expensive...but achieves good consistent velocities, with hard shot and a smoother/lower recoil.
I would be amazed if that was a true 70 yards probably much closer, a few years ago 3 of us shot at static face on clays with very tight chokes and couldn't break them past 50 or so yards. On closer inspection you could see marks on them but still intact. There is definitely truth about the spin helping the clay to rip itself apart. In fact I'm convinced many convincing breaks through lightly choked guns are due to this very phenomenon. One or two strikes and the thing self destructs due to the spin.
Zeiss victory rangefinder said it was 70 yards.
Absolutely, especially as its more like 1100 mph at muzzle. (Soon slows up after that..) in a rough calculation, I reckon the time it takes from the first pellets leaving the muzzle to the last is 0.00004 of a second. That is the time you have to move the barrel sideways to create the spray effect. Doddle.
