The Ruger Gunsite Scout Rifle (GSR) stock magazine... The Ruger GSR ships with the steel Accurate Mag, 10-round magazine. Ruger GSR owners know this as the "ELEVEN-ROUND magazine..." It really does hold eleven .308 Win rounds. As a quick check on my GSR, when I got it, I loaded 10 in the mag, put one more in the chamber, and closed the mag on the catch. Never thought to go more... ;D On this conversion, I've loaded eleven in the mag, loaded the chamber, and closed the mag (without any force) into the magwell. That's 12. In a .308 bolt gun. <thumbsup> I don't think there's any difference in the "regular" Accurate Mag 10-rounders and with what Ruger ships - not confirmed, though. I'll order another 10-rounder from Accurate Mag just to find out. At any rate, as it stands now, the Ruger "stock GSR" 10-round Accurate Mag will let you hold 12 x .308 Win rounds in a Rem 700 with Roger's DBM setup, eleven in the mag and one in the chamber, mag closing easily. <thumbsup> Empty mag in rifle: One full box of Federal 180gr softpoints, ready to go: 10 in there: 11th one in there, in the stock Ruger GSR "11-rd mag:" Mag loaded with 11, and 12th one in the chamber: Bolt locked on #12, 11-rd mag seated and locked, easily: All rounds cycled and ejected: Couldn't be happier. <thumbsup> <laughs>