My son and I have stopped using the 139 grain superperformance load in 7mm08. We sighted the browning A bolt with 22 inch barrel in and grouped good.
We hunt over food plots and we tend to shoot late as in right at black dark! He shot at a hog at last light and said he was blinded by the muzzel flash. I thought he was kidding. I used it the next weekend. I had 6 deer in a large 4 acre food plot. When I shot I was blinded by the flash and when I cound see again all the deer were gone from the plot. We changed loads to Winchester 140 grain power points and they do not have the muzzle flash.
You might want to shoot the Superperformance late in the day before you hunt with it.
