Walt - Of the 10 Ramline mags I bought, the springs went south on eight.
I ordered six Wolff mag springs from Brownell's, and six followers from CZ-USA. I installed the six Wolff springs in my factory mags. I ground down the rivet on the Ramlines and removed the spring and follower, and removed the plastic insert on the bottom, made a SWAG, and took .5" off the top off that projection and enough off the sides that the spring would fit around it. (I did it on one first, with the idea that if it held *more* than ten rounds, I'd toss that insert and hang onto the tube until the 10 round mag thing sunsets. 15 round mags are too cheap to risk going to jail.) In an amazing example of beginner's luck, it was the right amount. I assembled the mags with the CZ followers and recycled springs, and they worked. I took them to the range and put a full mag of ammo through each, and they fed fine.
Everything is not perfect, though. Sometimes, when pushing round #7 into the mag, the spring will hang up on the internal depressions which are supposed to limit the follower's travel. Removing round #6, and re-inserting it, seems to move the spring around enough to permit the rest of the rounds to go in.
As an aside, I found when replacing the springs in the factory mags that the follower in the 10 rounder isn't the same as in the 15 rounders I have. Rather than having the projection that goes down into the spring, the spring goes up into the follower, like on Metalform 1911 mag followers. I put that follower into one of my 15 round tubes, and the mag now holds 16 rounds. Using the other style follower in the 10 round mag works fine.
Regards,
Chuck
