I was finally able to get the Polonium 30 out on a new SBR 300BLK build. The owner of Otter Creek has stated this can does not do as well with 300blk as he would like and actually recommends another of their cans over this one. To my ears it did extremely well. It was quieter than my 9mm can with is rated for 300blk subs. I am happy with it on the 300blk, but ecstatic with it on my 6.5 Creedmoor. This is a great can for $500.

Very nice. I have a 5.5" 300 BLK with Sandman-S I need to test for function, but depending how it goes, I might pick up a Polo 30 so I can unify my .30 Cals with Rearden mounts.

Thanks for the report.

Beautiful rig, you've made me finish my Aero 300 project.