What you guys think about J&T?

[robsf49ers]

I recently bought a J&T upper 6.5 Grendel 20". I only managed to find Hornady 123 g amax in the area. The ammo gets jammed in the barrel. The bolt won't close completely. I have to pull the charging handle forcefully to extract the bullet. I've contacted j&t and they advised me to use Wolf ammunition, because Hornady hasn't been producing the correct specs for the Grendel. I also contacted Hornady, who advised me their ammunition was not the problem and to maybe run a reamer through the barrel.

I need advise what to do, buy different ammo and pray it works and never use Hornady or take it to a gunsmith and have it reamed?

Or any other advise?

TB I bought a satern 20" barrel for some $$$ it did the same thing as you described. It would not chamber a round without force and once it did it was pain in ass to get out. I also have an AA upper. I exchanged bolts and tried to chamber and extract. It did so flawlessly. I did not try to shoot any of these rounds as I have been told not to fire bolts from another upper. I sent the bolt back to satern they sent me a new one and it works great no problems since. I know Satern makes great barrels but do not make bolts. They told me they have had problems with a batch of bolts. Hope this helps.If you know somebody with a grendel maybe they would let you try it to see if it chambers and extracts, But do not shoot. I really don't thinks it's the ammo. If you don't know somebody with a Grendel I would let you try my AA bolt. Let me know . I have some Grendels. So it would not be an inconvenience to me.