Well I took a stock ASC mag, without any foil tape, and bent the feed lips and got it working pretty reliably. On par with the “taped” mags. I’m calling it a success. 
In the interim the Howa arrived and it is night and day between the two. The feeding and extraction with it is flawless, sublime, in fact, I couldn’t make it malfunction. On top of that, it easily shoots AG sub MOA. Life is good.
So, with the Howa good to go, I put the RAP back in the Hunter stock (again) and went about bending the feed lips. So far, it’s not working for me. What worked with the AR mags, is not working with AI\PR conversion. I can get either the first 4 or the last 1 to feed reliably, but not both at the same time. Gonna sit on it for a while and ruminate, not giving up, just pacing myself.
FWIW: Called Primal Rights to see if they could offer any tips/suggestions and they acted like they never heard of anyone having any problems. Really, well, they should come log on the Grendel forum then! “Josh” at PR took my number and was going to ask around the shop and get back to me. So, when I hear back from them, I’ll pass it along here.......
In the interim the Howa arrived and it is night and day between the two. The feeding and extraction with it is flawless, sublime, in fact, I couldn’t make it malfunction. On top of that, it easily shoots AG sub MOA. Life is good.
So, with the Howa good to go, I put the RAP back in the Hunter stock (again) and went about bending the feed lips. So far, it’s not working for me. What worked with the AR mags, is not working with AI\PR conversion. I can get either the first 4 or the last 1 to feed reliably, but not both at the same time. Gonna sit on it for a while and ruminate, not giving up, just pacing myself.
FWIW: Called Primal Rights to see if they could offer any tips/suggestions and they acted like they never heard of anyone having any problems. Really, well, they should come log on the Grendel forum then!
“Josh” at PR took my number and was going to ask around the shop and get back to me. So, when I hear back from them, I’ll pass it along here.......