Federal .224 Valkyrie 75 TMJ, is it just me?

[Mike_in_FL]

So I bought 800 rounds of this ammo when I caught it on sale for next to nothing. My first rifle chambered for the round is an ARC Nucleus action with a custom Krieger prefit. After setting up the rifle this is somewhat hard to chamber yet the factory Hornady 88s go in like butter. The bullet isn't contacting the throat.

Tonight I just finished putting together an AR upper. Craddock Precision Bartlein. So I try to chamber some of these and I have to mortar the rifle to get one of them out. As a sanity check I try some Hornady black 75s and 88s, no problem.

I see no recall online. Has anybody else had this problem? TIA.

 

[bgavin]

Yes

I bought a case of this and it does the same in my gun.

 

[lash]

It sounds like you need to do some measuring. If it’s not the throat/lands, then it pretty much has to be either neck diameter/length or headspace length.

FWIW, I’ve shot about 100 of those so far in my Craddock Precision chambered Rock Creek AR with no issues that I noticed. That’s no scientific study or meaningful result, just one data point. I do notice they eject further forward at about 2:00, but that’s to be expected with a lighter projectile and different load.

I’m interested in what you find.

 

[RFutch]

I’ve had the same issue with the two boxes I shot. No issues with anything else.

 

[Timetoshoot]

1100+ rounds through two AR’s. One maybe two in incidents as you describe

 

[Mike_in_FL]

I haven't measured anything or even just marked up a round with a sharpie yet. I did happen to find this as a solution, lol.

 

[bbyars]

Ive heard read an article on here a while back of some manufactures using blown out reamers. kinda sound like a issue you are having, especially if its a HS issue.

 

[bbyars]

I haven't measured anything or even just marked up a round with a sharpie yet. I did happen to find this as a solution, lol.

very interesting video.

 

[Mike_in_FL]

I marked up a round completely with a Sharpie and I only saw one tiny stripe on the body of the case. I can't tell if it's just something I missed or what. I chambered that round several times without any clear wear pattern. I also tested with the Hornady OAL tool. These are roughly 2.140 and I have .030 before I hit the lands with that bullet.

I did pull 20 of them and made the Mex match per the JP video above. I will shoot those tomorrow BUT one of the first I checked is still stiff on closing the bolt. I finally bought a box of the Fed. 90SMK and I'm not getting that with it either.

 

[Mike_in_FL]

This is the result of using JP's Mexican Match recipe with 77 TMKs. These were doing an average of 3150 out of my 26" Krieger.

 

[KineticU]

So I bought 800 rounds of this ammo when I caught it on sale for next to nothing. My first rifle chambered for the round is an ARC Nucleus action with a custom Krieger prefit. After setting up the rifle this is somewhat hard to chamber yet the factory Hornady 88s go in like butter. The bullet isn't contacting the throat.

Tonight I just finished putting together an AR upper. Craddock Precision Bartlein. So I try to chamber some of these and I have to mortar the rifle to get one of them out. As a sanity check I try some Hornady black 75s and 88s, no problem.

I see no recall online. Has anybody else had this problem? TIA.

New to shooting. But My Rem 700, 224 build loves Federal 75 TMJs and likes 90 SMKs.