When I bought my Ruger Precision Rifle in early Dec 2017(.308 w/- 20" barrel), it was supplied with 2 polymer MagPul P-mags.
Within 4 months, the P-Mags have crapped themselves. The feed lips on the top of the mags are so weakly supported, they are deforming the tops of the mags when you load any more than about 3 rounds into each mag. As a result, the bolt is quite hard to pull back(binding with the lips), and rounds dont strip reliably from the mag.
Looking at the polymer MDT P-Mags in comparison, the MDT version is much heavier built up around the top of the mag, and while the MagPul mag is easier to load, it's nigh useless if they only last a matter of months.
So, 3 months back, I handed my MagPul P-Mags back to the LGS (who had sourced me the Ruger new), and asked for a replacement mags of another brand, as I have no confidence that new MagPul mags are going to last any longer.
3 months later, and he FINALLY got a reply from the Ruger importer (Beretta Australia??).
They reckon the top of the magwell in my rifle MUST be defective, and want the rifle back...
Funny; I'm not seeing any deformation issues in either my MDT P-Mags, nor any scoring of the 4 metal AI mags I have, that fit this rifle...
I suggested my LGS tell the importer they can kiss my arse; I'm not sending them the rifle back.
I'll not see the rifle for months on end, and I'll have to pull the scope etc off it, and besides, I'm still a tad sceptical they have a freaking clue. The net is full of people expressing frustrations about their MagPul P-Mags misbehaving, so I have doubts it's a problem with just MY rifle...
I asked the LGS to get the mags back, if the importer is too cheap-arsed to do anything about it. LGS bloke assures me they WILL be replacing the mags with 2 Ruger-branded mags which are supposed to be of a different design.
We shall see.
[NOTE: a mate has the Ruger Precision Rifle in .223, and his poly mags supplied with the rifle (I think they were also MagPul) seem to be working fine. It looks to be the design is strong enough for the smaller .223 cases, but hasnt scaled up very well to the .308 size of case.]
Given my first Walkey-Pokk in 10 days happened this morning, and given the last grasshopper of this mornings session went down at 95 metres with his head missing, I'm not keen to part with the RPR just now...
Gotta love these 125gn SST's; work a treat...
Cheers,
Rod.