I'm sure most dont agree with everything he does or says (toby bridges) he was able to use the same set-up as me from the 209m primers to the amount and type of the powder to the scope and bullets. He was able to shoot 50 bullets in a 1.6" hole without cleaning at 100 yds.
Now first off I'm not him and if I was and I did that I might of had a heart attack. I don't shoot as much as he does,( I know he has over 6000 shots with that gun) I don't have the time in the gun I'm sure at the point he did that. However he was able to have the same gun shoot the same bullets in a tight close group on more than on occasion. However once again his gun is not my gun. There could be a 0.002" difference who knows.
http://www.hpmuzzleloading.com/NewsRelease.html
I know he also tried several diiferent jackets (sabots) and charges of 777 and bh209 and found that " If your rifle has something different, this bullet and sabot combination may not shoot as well" However if it shot half as well I would be happy as hell. One thing I want to do is try 10gr less of bh209 and see what it does. That'll be 100gr.
someone on here said to try a different sabot which I have called on already. As far as 7-9 no pattern. I consider it no. If #7 was on the other side of the bullseye I would be estatic. I took my 300 mag and shot really good 10 shots my average of all of them together was 1.45" away from center to center. Two of them where 2 1/2" and the other 2 1/4" center to center away.
I'll have to see what works best but I'm at fault a bit too with moving a bit as wel I'm sure.