Les Baer says his ar15 Grendel cannot handle a suppressor?

[LRRPF52]

Wait a minute, why would Les Baer, the creator of .264LBC, even be cambering an AR in 6.5 Grendel. Who did you talk to? Somethings not right. Every gunsmith I know uses a PG&T .264LBC reamer set for 6.5 Grendel chambers. The tighter throat of the .264 gives a little more muzzle velocity.

If a gunsmith even mentions using a PT&G reamer for any cartridge I'm chambering in, I insist on Manson or JGS instead. If they insist on PT&G, I take my business elsewhere. Been bitten in the rear too many times with .223 Wylde, 5.56 NATO, and .308 Winchester chambers using PT&G reamers.

Especially for 6.5 Grendel, if a gunsmith insists on using ".264 LBC". (Les Baer's chamber is the .264 LBC-AR with specific call-outs that I would go to Les Baer for, nobody else), when you ask for 6.5 Grendel, understand what capabilities and limitations you will have.

The 6.5 Grendel chamber was designed from the start to work reliably with harsh conditions and steel case ammo, while providing accuracy with a wide range of bullets, whereas the tighter neck (.295") .264 LBC-AR is focused on accuracy with high quality brass cased ammo. We have seen several instances where the tighter chamber neck starts to encounter malfunctions with the Wolf steel case, as well as when suppressed.

Maybe Les is talking about the increased chamber fouling when shooting suppressed, as well as the system not being designed to run with overpressure from suppressed use.

You can get away without modifying the existing barrel and gas block by using an adjustable carrier or gas key.

I know Les Baer has spent a lot of effort tuning the overall system to be extremely accurate, while being reliable with quality US brass-cased factory ammunition.

As far as timing goes, the RLGS 20" barreled guns are more forgiving than say an 18" MLGS, but when you try to unlock the bolt under pressure, the torsion on the lugs and the extractor become more of an issue.