I have a Marlin 336, made by Marlin early 1990's. I used Leverevolution power for as long as Hornady made FTX .308 caliber bullets, around ten plus years, and I have only used the Hodgdon powder. It's no dirtier than the next powder. Rifle is easy to clean no matter what you shoot. When you use Hodgdon and the FTX bullets, I have clocked 2200 feet per second. I have used this rifle for hunting and the load. I used to use Remington core lock 150s and 170s, but with the new powder I stick with the Hornaday bullets. Accuracy is not bad for a lever gun, made some good deer shots through the brush. Older guys than me called the old the 30/30 a brush rifle, it's also a good for home defense. I use 34.8 grains of Leverevolution Hodgdon power. I have gone up to 35+ but ran into overpressure on case life. Hornady's book says 34.8 grains, and that's what I use. Just reloaded 35 rounds last night. I had to change the scope, really old, and put a new one on the rife. I happy with the powder, I have used many pounds of the stuff.