SBRd 300BO suppressed is gassy as all get out...even the MCX...
French mil/police do not have an abundance of 7.62x39...they never had as a NATO country.
Running Lehigh Defense is really not attainable...its over $1 per round....even regular 300BO ammo is above $.50.
The mass of people are locked in to the 5.56 and 9mm offerings because that is whats available....enthusiast....which make up maybe..honestly...at max 10% of firearms owners...only about 1-2% invested into the 300BO round.
With the current slump in the industry...I don't see 300BO catch on more...it was the rage when it came out...but now...more people realize they will A) never get an SBR B) never get a suppressor...which at that point 300BO offers no real added benefit over 5.56...especially when you factory in increased ammo costs and limited effective range.
No argument...if you are planning to SBR and run a suppressor...100% 300BO is an amazing round for just that.
Quite honestly...makes no sense to go 300BO when you can get cheap 7.62x39 ammo...and actually supress an AK properly now:
https://deadairsilencers.com/products/wolverine-pbs-1/