As a follow up to my 6.5 barrel won't cycle at #3393 let me add this.
The XH buffer and spring came in. I tried it out and it made no difference. I'm not really surprised by that but what the hell. I can use it elsewhere. I'm not opposed to having extra parts. I don't think I'm alone in that here.
I then tried Federal GM 130 grain with the LMT H3 and spring. That does cycle the action. Interesting.
I had put together an Aero M5. Toolcraft BCG, Criterion barrel. I doesn't cycle the Hornady 120 ELD either with the LMT buffer and spring.
More interesting. Neither will cycle my first "reloads" (everything is new so is it reloading?). IIRC they were Nosler CC123 and about 41 gr of RE15.
So at this point I'm going to load up some 130TMKs and some Hornady 140s with some H4350 and see how that goes. I have also ordered an Odin adjustable buffer to go lighter with the 120 class rounds to see if that functions.
(and I never did get a follow-up from LMT CS)
Thats frustrating,
I know you said you called before but I would give them a call and tell them that you need an RMA for a barrel that you cant get to cycle. Something odd is definitely going on as my 6.5cm even runs with my slashes XH buffer that i got for my 13.5 barrel and can.
Their last customer service guy Gene was really good and just retired a couple months ago. I am going to be that they probably have somebody filling in for that role or are just figuring hit out.