Are these ASC 6 ARC mags different from their original first issue of the mag? I have 4 of their original 6 ARC mags (red followers). The cartridges definitely do not sit higher than in a 6.5 Grendal mag. Looking from the bullet end of the mag, it appears that the round sits higher, but that's because the top of the mag has a deeper scallop which keeps the bullet tips from contacting the top of the mag when loaded into a chamber.
If the cartridges are actually sitting higher in ASC's newest 6 ARC mags, are the feed lips slightly wider apart or a little shorter so the cartridge will sit higher? The only difference I see in their followers is the color. I measured the distance between the feed lips on one of my ARC mags & a Grendel mag. The distances were close between the two mags with the 6 ARC slightly wider. The ARC Mag tapered from .475" to .490". The Grendel mag tapered from .475" to .485". By eyeball, that's not a big difference.
If the cartridges are actually sitting higher in ASC's newest 6 ARC mags, are the feed lips slightly wider apart or a little shorter so the cartridge will sit higher? The only difference I see in their followers is the color. I measured the distance between the feed lips on one of my ARC mags & a Grendel mag. The distances were close between the two mags with the 6 ARC slightly wider. The ARC Mag tapered from .475" to .490". The Grendel mag tapered from .475" to .485". By eyeball, that's not a big difference.
The trick is growing up without growing old. -- Casey Stengal