I have Browning BPCR in 45-70. I only shoot it with black powder or low pressure smokeless loads. The manual states it can be used with higher pressure loads but it is defeating the purpose of the rifle. The rifling is 1" in 18" and is cut for softer cast bullets that are fired with blackpowder. It is superbly accurate at 500 yards and beyond with them. If you read about hunts for Buffalo with these they routinely shoot through the beasts with black powder. You don't need more than that. The sights are designed more for precision long range shooting, something the +P loads aren't the best for. I get strings of ten shots that have 5 fps or less deviation with blackpowder when they are loaded correctly.
A truly fun rifle that can be shot with accuracy, mild recoil and noise within its design.
A truly fun rifle that can be shot with accuracy, mild recoil and noise within its design.