David you think the double shot cup would increase pressures...both my guns are Nitro Proofed for 4 tons and marked 1 & 1/2 oz. Only other shotgun loading I've did was with Blackpowder like I said my guns are Nitro proofed but I don't want to push the envelope. I do plan to pattern the guns at a little longer range.
Not much low pressure data for a 3 & 1/2" 10.
Honesty never hurt anybody George. I'd try 2's but they are illegal in most states I hunt.
As far as timing the wingbeats...lol. All I can say is you never saw my dog bust them.
PJ I shot 5 or 6 loads per barrel and they were all similar...a couple of the targets are pushing 200 hundred pellets in a 24 inch circle at 35 yards.
