Originally Posted by
hoghunter59
guns do have tendacy to shoot different liads different, takes patience to find the right losd for the gun- twist rate of barrel can determine what bullet is best for your gun- browning 7 mag i had liked the remington 150 gr. real well,
True, you'll find variations. However, the fact we're talking 8-10" groups at 100 yards is well out of the norm in and of itself. Something's seriously wrong, and if it's not fixed, no amount of tinkering with different loads is going to change things.
If everything's tight and the sight picture isn't changing (i.e. flinching, etc.) this rifle needs to go back to the manufacturer. However, it being a Browning, I suspect it's NOT the rifle or the ammunition. It's far more likely to be the mount or the shooter until those two variables can be ruled out.