I am gradually making progress on my No1 LE sporter in 375-303. My re-bored/rethroated barrel arrived home recently and it looks like a lovely piece of work. I hope to find time to mount the sights over the next little while.

Right now I am thinking about how to modify the .303 mag to feed cast round-nose or even flat- nose .375 bullets more reliably. As presently configured, the left cartridge feeds Ok but the right does not. I have some ideas about how to correct that but would be interested particularly to hear if anyone has had any experience in modifying a double stack magazine to single stack for large bore cartridges. Also any ideas for continung with the double-stack configuration would be welcome.

Thanks.