I do not have a 338 from them. But, I did just receive my 300 Norma Mag from MPA a week ago. If there are any questions i can answer for you I will gladly try.
I was able to put a few rounds through it today and was honestly shocked at how little recoil the rifle has. I shot off a bench using a bipod and i am not exaggerating when I say it has less recoil than my 6.5 Creedmoor Bergara HMR. The muzzle break it comes with is very effective. I am waiting for my suppressors but they are in time out until at least September.
The fit and finish are very nice on the rifle and the action is very smooth. Trigger came set at one lb and has no creep and is very crisp. Please ask if there is anything I can fill you in on.
Chris