I thought I noticed the same thing, but hoped it was the angle of the photo.
waw44, hold the stock vertical, butt up over your head, bayo lug pointed down & closely examine the front wall of the magazine well (post #2, pic #1) . On your stock, the area isn’t flat like the actual magazine front is, but double-curved, coming to a point in the center. This is the wood behind the recoil lug, look with a bright light for a horizontal (across the lamination lines ) fracture line about 1/4”//5-6mm below that shelf the action sits on. Most likely, you’ll see the shadow of that 1/4” thick by 1” wide wooden ‘plug’ hanging out above the rest of the mag well wall by about 1/16”//1.5mm. This has to be repaired before shooting. The ‘tell’ in this case is that the head or nut of the recoil lug are off center towards the rear of their hole in the side of the stock.
it seems that every one of my spare stocks has this flaw, except for the solid wood ones. I suspect it’s a combination of age of both wood & glues, the hammer effect of heavily-used rifles, firing w/screws loose, but what a pita to fix.