I put the axiom u/l on my vanguard. 270 win in an attempt to compensate for recoil for my girl. Shes a little thing and while she could shoot it with the factory stock, after a dozen rounds she had to put it down. When i did this my go to elk gun was a remington 700 .300 wm. I just sold it. I LOVE shooting the .270 with this stock. The recoil is significantly reduced, the obviously floated barrell is never affected no matter how hard or what angle im leaning on the stock, and the pistol grip is comfy and really helps steady the gun vs. the factory traditional stock. I have found a significant improvement in my shooting (and hers too, after all its supposed to be for her). My last elk was dropped with one shot at 700 yards. I like it so much i just ordered another to put together a .338 wm howa for the really long shots.
There a few things to get used to. I have found thàt between the buttstock and grip recoil system you have enough movement that if you are close to your scope it will hurt. With the .270 i need about 3" of eye relief. I would anticipate needing more accordingly with larger calibers. Since it does move, shooting off a bipod can get a little squirrely with rapid follow up shots. Off a sandbag or my hunting pack i can smack an 8" gong at 300yds with 6 rounds in about 10-12 seconds. Point being you can stay on target much better without the bipod. I have had no problem with accuracy whatsoever using a bipod but i have to slow down a bit. My only real gripe is that it can be a pain to find a bipod that really fits the forend and this in turn results in the sling stud getting loosened and the damn thing swiveling around sometimes. Oh that and it causes me to blow a lot on ammo