Quoted:
I know it's been said that the Octane 45 can structurally handle the 5.7, but I'm interested if anyone has ever done formal or informal measuring/testing of the Octane 45 HD. I have one coming in a month or two and would like to know if the Sparrow or the Octane is a better choice for the Five-Seven and/or the PS90
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Nothing scientific...but...
I have the Octane 9 & 45, and the Osprey 9 & 45. (All rated for the 5.7x28)
I bought a Sparrow to dedicate to my PS90 SBR.
Due to size and weight of the pistol cans, plus the fact all my ammo is supersonic, the Sparrow is the only can I regret purchasing. If I could go back in time a couple months, I'd build a Form 1 can for the PS90.
Silencer Shop has done some 5.7 testing.
Here,
here,
here,
here. (I think the first one includes all three cans done individually on the other videos).
Also, SilencerCo has posted a couple.
Here (P90),
here (AR57), and
here (FN 57).
Unfortunately, it's all done with the rimfire cans. Not sure I've seen either source test the bigger pistol cans with that round.