I bought a box of these to try recently and they really are a lot quieter than normal loads.
They remind me of the Aquylla CB round but a little nore power
Bottom line is they are quieter because they are way Syb Sonic!
BUT.... I do NOT recomend firing these through a suppressor due to the exposed lead! When a lead bullet is fired the back of the bullet burns and turns into a gas momentarily. While this dont hurt performance it does lead your suppressors baffles up till it literally causes the suppressor to gain wirght and reduces its effectiveness
When that happens unless you have the type can that can be disasembled at home (most aren't) then you have to send your can back to the manufacture and have it broken down and the baffles cleaned
In short if you need a round for shooting rabbits and squirrels at less than 25 yards and noice reduction is imprortant to you then this is the round you need
BUT... Like everything, else in life nothing is free.
In exchange for the reduced noise you also get reduced power and range.
If you plan on shooting more than 25 yards these probably aren't the rounds for you
Also, While these rounds they are best suited for bolt actions or single shots as they won't cycle most autoloaders
RemMax