Have you shot a suppressor much on a short barrled hunting rifle or mostly speculating.
I only ask cause I thought along the same lines as you. Then I shot a TBAC ultra 5.....changed my mind and far from a 20 oz can.
Have you thought about rebarreling your fieldcraft to a longer and heavier contour. I don't personally get the handling thing but if its a hang up for you and you shoot short rifles substanially worse then I don't blame ya one bit. I can't see enough of a difference to justify the extra length on many of my rifles. The difference between 143s out of my 18" Fieldcraft at 2720 fps and 143s out of my 24" Tikka at 2900 fps both in 6.5 CM isn't enough to make a bit of difference inside as far as I would be shooting game with an ultralight rifle.
At 600 yards the 143 from the Fieldcraft is impacting at 1900 fps and 2060 fps from the Tikka. Both well above impact velocity of most bullets especially the eldx used in this example. So yeah I can live with 160 fps slower at 600 yards for 6" less barrel to carry around. Lets face it rifle balance doesn't matter much when shooting that far anyways as you aren't going to be "holding" the rifle but rather off a backpack or a bipod at that distance.
Great thing about options though everyone can find what they prefer and no one choice is wrong just has to work for the you. Sorry you are not pleased with how Barrett turned out their rifle. If you are interested in selling it let me know I have a few guys looking for one.