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26.9 g 2000-MR with the 90's seems to be the sweet spot for me so far zeroed scope for elevation with the first three shots and then a 7 shot group @200 yards, wind was gusting from 5-17 mph right to left, hold was left edge of 2"x2" bullseye

I’m running an adjustable gas block 1/2 turn up from not locking back on the last round, also running an H2 buffer, the first case of ammo I got from Federal was overpressured and that is what I’m reloading now, just curious about what everyone does to straighten it out, or whether you toss it?

So far so good with the 2000-MR and the 90 grain SMK’s, still having a heck of a time with some of the brass with the slight bends in rims with the factory brass, but after hours with a fine tooth comb and some file time had some better tests the yesterday and the day before....this is the best...

Ran a few strings of test loads through the rifle late this evening after the weather cleared up a bit. Overall was pretty pleased with the results, other than the fact that I should have been a bit more thorough when going through the brass. Had some slight issues with some full length...

Hopefully if it doesn’t rain too much this weekend I can get a few loads worked up and contribute to this thread a bit! Thanks for sharing your data guys, it’s always interesting to read through!

For many of these reasons alone, as soon as I can get the necessary pieces to reload my own I plan on starting. There are a myriad of variables that could cause the blown primers...but I will say that the case of factory ammo that I'm currently running through has shown only occasional signs of...

Haha yep ? 2620 ? ....it’s been a long week!

Still no word from Federal on the ammo that I sent off....but on the bright side I've got another 35 rounds through the rifle again today with no issues, brass still looks good, chronographed those 35 rounds for an average fps of 2620, with a SD of 11.2, so not too bad out of the 18" barrel...

Just a quick update for anybody that may have been curious.... Got another case of ammo in and finally had some time to shoot a little bit today, had no problems at all with this batch of factory loaded 90g SMK's. Brass had the occasional ejector swipe but other than that no signs of pressure...

I’ve got another lot on the way and hoping it was just some bad luck with a bad lot of ammo. I’m not sure how much difference there would be if everything was loaded correctly between the Fusion and the Sierra’s to start with, but it might have been interesting to see...

I had that thought as well, except that the Federal Fusion ammo I've run through it has functioned properly with similar trajectories to what advertised. Out of 120 rounds of the Fusion ammo there were zero jams, no ejection marks on brass. When I switched to the Federal Sierras I had a blown...

I've seen the same numbers, I'm claiming its an issue. The guys shooting these rounds were they also claiming to have to shake primers out of their magazines and lowers? One of the pictures I posted shows a fresh round that wouldn't chamber because the primer from the previous round hung on...

I assure you those numbers are very close, and I back checked them after putting them in my calculator to check a group I shot the other day at 520 yards checked out. This group was dialed up 7.5 MOA @520 with a 200 yard zero, rifle had about 40 rounds through it at this point and I just wanted...

Hey everyone, new to the forum, but I've been reading on here for a little while and figured I'd see if I could get some help with a problem I've been having with this new round. Shooting the .224 Valkyrie 90 grain Sierra MatchKing factory loads, I have found that about 15% of the rounds I fire...