Originally Posted by Greyfox
I have found similiar results using my Magnetspeed for a couple of months. I subtracted 10-20 FPS depending on the rifle used, which would then match my Oehler. I seems to match my Shooter apps calculated velocity loss difference between the 15ft distance of the Oehler and the MS sitting right in front of the muzzle. On several separate days, and two different rifles, the MS gave me FPS and ES which were within a few FPS. It's so precise that I have been able to determine the exact number of shots it takes to stabilize the velocity from a clean bore. I have also found that with both my rifles my group size and POI does shift with the MS mounted, so i dont combine the two processes, the only drawback. I may be just my rifles though. I'll likely sell my Oehler, this is great technology.
Sorry, I feel remiss/foolish now...So my assumption that the Magneto would change the POI and group size seems to be true according to Greyfox's experience. Just makes sense.
I would have been concerned about taking this one to market if it were my idea because I don't waste sending rounds downrange just to see the speed; I use all shots to determine accuracy and keep all targets. I would figure most guys do the same, but maybe not.
Designing a prototype is one thing, but its a lot of money to invest to go into full manufacturing and establishing a patent. Good luck to the Magneto guys though!
By the way, with the Pro Chrono, like Greyfox mentions with the Magneto, I can see exactly when the velocity stabilizes after a fully decoppered barrel (which I don't do between every shooting session). I can also see the smaller difference in a lightly cleaned barrel (with only powder fouling removed). Lastly I see the same velocities I last left the range with if I don't clean the barrel at all. (This is what I do before going out for the hunt- know my POI and leave it be!) All states of barrel show repeatable results.
D & X zone hunts start in 10 & 17 days...woohooo!