Greetings!
Well, this is the test that I had promised on my mags that appeared to have a small defect near the business end of them.
I first disassemble them completely, cleaned them with a degreasing solvent and applied the dye penetrant. Let the dye penetrate for approx. 45 min, wipe the dye off and sprayed the developer on them.
The results are shown in the accompanying photos. I do feel that there is a flaw in and where the weld ends near the feed lips of the mag.
Whether this very small defect will propagate and lead to a failure to feed properly, I couldn't honestly say........ but as I have mentioned before ,... I'd feel alot better if the dimple was at the bottom of the mag.
I realize too that Rohrbaugh outsources these magazines, but,... I do believe that QC should take a better look at this situation.
I also measured my two mags at the feed end and they check out at .325 & .326 respectively. The mags will be checked periodically for any changes,.... drastic changes that is!
This test has absolutely no bearing on the quality of my R9, I love this gun and still feel VERY confident with it in my pocket,.........and the most wonderful thing about it, ...is that I can now keep my pants up!!
http://tinypic.com/9iqouq.jpg dye penetrant
http://tinypic.com/9iqqvr.jpg developer