Agree.
To me, "drop in" just means it won't be as hard to bed and make sure barrel clears.
I like to Steel Bed the action, especially the recoil lug, with big boomers.
I built a .404J on a M-70 300 RUM donor. I used a D'Arcy Echols Legend stock. McM makes the stock for D'Arcy. McM says to go with mag fill, D'Arcy said std. fill would work. He installed cross pins and it was pillared. I Steel Bedded that one and it's working well. Back in the old days, they put an extra lug on the barrel. To me, with Steel Bed, that isn't necessary. You're not gonna get compression, it will hold.
I wouldn't be afraid of the softer Edge fill for a .375 H&H with pillars, cross pins and Steel Bed. McM won't go there, but they're in CYA mode. They don't know how well I can Steel Bed one and they not gonna bet the farm on it...
Std. fill is where I'd go with a magnum. Edge makes a pretty light gun, maybe too light for a big gun. Mag fill would be the "safe" bet; it's just heavier.
DF
