I am 99.9% sure a 375 H&H length round will fit in an AV magazine for a rifle chambered in 7mm RM. Problem is my Sakos are 12,000 miles away and I have no way to verify. Thanks for the help. Lou

I`ve had Sako AV in 375, so yes it fits.

I can confirm what asti has said. I own a Sako AV in .375. So if your question is: Will the action accommodate that cartridge? - the answer is yes.

Thanks! Just wanted to make sure. Lou