I am having feeding problems with an older 110 with blind mag box. It is the style with the scope bases built into the receiver. When loading the magazine with more than one 7mm Mag cartridge, the rounds will pop out when the bolt is pushed forward. Funny thing is that it will actually feed 30/06 rounds just fine (no I didn't fire them).

Was there a separate magazine box for magnum rounds versus 30/06/.270 rounds?

I ordered a "magnum" magazine box from Brownells to have on hand and they sent a short action box with very narrow feedlips. Looks like maybe a 223 magazine but labled as a magnum magazine.

Any advice??