Looking at having Vang Comp do his barrel treatment. I have an 870mag. Question gun is gonna get used for two things coyotes and maybe some 3 gun stuff next year. Is the Vang Comp treatment too much of a good thing? He is getting 00 buck down to 12 inch patterns at 25 yards. DEA just killed a guy at 55 yards with a 14inch Vang 870. 6 of the 9 pellets hit him and dropped him DRT. I was gonna go with a 18-20 inch barrel. Alhams will do a back bore cut/crown and install rem chokes for the same price. So what says the hide. Vang Comp or a Shorty with adjustable choke tubes.