I also remembered I did some load testing with my Marlin 336 with the factory open sights. That target was a 12" x 18" white target with an inverted T in the middle. I also had the bottom half below the base of the T colored orange with a highlighter. I was able to dial in my windage on the factory sights and use a punch and hammer to "adjust" them in the dovetail. There were only 4 notches on the rear sight elevator ramp. I was able to get a good the best load I could from LeverEvolution powder and a 160 grain FTX bullet. I later switched to a Ranger Point aperture sight and that load was still the best I could do. It wasn't great, but 336s aren't really known for needle threading accuracy. That Inverted-T target was quite helpful and kept hammering on the rear sight and the associated funny looks to a minimum.
It wears a Williams FP rear sight and Skinner front Patridge sight now to accommodate much slower cast bullet loads. I use an 8" target for these loads but test them at 50 yards instead of 100. They're much slower with a trajectory matching a hot 9mm or light 357 Magnum load.
It wears a Williams FP rear sight and Skinner front Patridge sight now to accommodate much slower cast bullet loads. I use an 8" target for these loads but test them at 50 yards instead of 100. They're much slower with a trajectory matching a hot 9mm or light 357 Magnum load.
