Re: 22/6mm bullets blowing up
Dan says his 3 grooves are the best...for what? i think the 3 groove thing came and went, they are just harder on bullets. to be honest, i doubt you have a twist problem, but being you're probably close, anything else will "put it over the top" so to speak. if you want to scream them out of there, get some GS customs. you won't blow them up. my guess is you have a crackling problem that's very prevalent with the fire breathing dragons. a new barrel is very smooth, and doesn't tear at the bullets. but as you shoot, the surface of the grooves gets cracks in it, as the number of rounds increases, the farther the cracks go down the barrel. these cracks have more to do with dusting than the rifling. also remember the faster you push bullets, the higher the rpm's are and the greater the centrifugal force which is another reason to come apart. if you want to shoot a long ways, you have to use the longer bulets which take a faster twist. if you're concerned with speed, put a 14 -15 twist on it and shoot the lighter bullets. i doubt the bergers will work better, i would assume quite the opposite. the reason the scirrocos stayed together is because they are the thickest jacket of the bullets you mentioned. and 5 or 6 lands is just better.