All the dacron I have used kind of floats down like willow fuzz about 10 feet in front of the barrel looking like it hasn't been affected at all. I have an old bed pillow that I pull a handful from and the pull and roll puffs of it that I push into the cartridge with the eraser end of a pencil--usually in .45-70, but I've also used it in .308 and .30-06. I've had no problems in any of these calibers. GF