I read about this new caliber on line. Here's the site, the article is listed under 'Ammo';
So far Ruger has a revolver to handle this caliber, the SP101. The .327magnum has 20% less recoil than a .38spl + P. The gun also can shoot .32 S&W, .32spl, .32 H&R magnum rounds.
Subjected to the standard FBI protocol tests for effectiveness through barriers, the 115 grain .327 magnum load reaches:
15" Bare Gellatin
16" Heavy Clothing
16" Plywood
14.5" Wallboard
13" Auto Glass
20" Single Layer vehicle body steel