I'm looking to buy a YHM .30 cal Resonator The Resonator®, .30 Cal. for several different rifles, including my Ruger 5.56 Ranch Rifle. My Arisaka is 7.7 mm, and I wonder if a .30 caliber can will work on it, since .30 cal converts to 7.62mm, and 7.7mm converts to 19/64th (about .3039)...very slightly larger. Or should I consider a .45 can? Anyone know for sure?
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