So I recently bought and tested a Ruger All Weather Hawkeye in 300 Win Mag. It so happens that I have a decent quantity of match 300 Win Mag, loaded with Sierra 190 Grain Match Kings, BUT, they are too long to feed from the rifles internal magazine well.
Too tell the truth, the fact that I had this ammo was part of the reason I bought the rifle in that caliber. And the rifle is a very good shooter as well!
Does anyone know of a way to lengthen the internal magazine to accommodate these rounds? Seating them deeper is NOT an option.

I such instances, I find nothing wrong with loading up and shooting single shot. I have an accuracy thing and don't worry about the quantity of lead in the air.