Question for those talking about the for-end affecting offhand shooting? How do you guys shoot offhand? (Serious question)
I have always wrapped my arm in the sling and pulled it taught with my hand landing practically just in front of my scope.
I've practiced thousands of offhand shots on small game. Being right handed I have my left support hand way further back on the stock than most. On my Tikkas it's all the way back under the magazine. Left elbow into chest or top of left hip, this is how you stabilize. Learn and know your sights if open sights, with scope reticle come down slowly into the target don't try to raise the reticle into the target. It's very awkward at first but once you learn how to stabilize it's quite effective. Open sight Tikka 22-250. 20" barrel, over 2,000 confirmed kills on that rifle. It doesn't look that pretty anymore and is on its second barrel.
I killed two deer last year with offhand shots in the woods with my Tikka .260 and SWFA fixed 6. One at 50 yards and one at 30 yards. One doe ran about 10 yards, leaned up against a tree, went another 30 yards and died. Practicing on small game (preferably) or targets is what leads to these successful off hand kills. Same form/body position as open sights.