ds1 Posted April 8, 2021 Report Share Posted April 8, 2021 Break in day today for a mates JP 224 Valkyrie. Top tier kit, JP AR 15 (semi auto)..... they are the best AR 15s period, Nightforce 7-35 ATACR, Spuhr cantilever mount. Still waiting for the Cyke bipod but the Harris does well. Even for about £10k is not a perfect set up, the 6.8 SPC mags worked fine but the 6.5 Grendel mags made it like shooting a U.K. single shot - constant failures to pick rounds up from the mags. Today was just about barrel break in. One thing was really impressive- the eliminator break, hardly any recoil with the system at all. Also I liked the side chafing handle ( ala FN Fal) and not having the stupid T charging handle at the back of the receiver. Accuracy - we were only using my 50m range but everything was one hole groups, irrespective of clean or dirty barrel and velocity was averaging about 800 m/s with Hornady factory 88 grain ELDMs. Next is to get the fired cases measured and start seeing what it really like with reloads. Quote Link to comment Share on other sites More sharing options...
ds1 Posted April 8, 2021 Author Report Share Posted April 8, 2021 6.5 mags - Alexander Arms ( didn’t work) 6.8 - RRA I think Quote Link to comment Share on other sites More sharing options...
baldie Posted April 9, 2021 Report Share Posted April 9, 2021 Grendel mags won't work Dave, the cartridges are not the same diameter. The 6.8 mags usually require a tweak, but will work once addressed. Thats quite stunning accuracy with factory ammo. any idea on the barrel twist ? Bet its a 1-6.5" or a 1-7?. Quote Link to comment Share on other sites More sharing options...
ds1 Posted April 9, 2021 Author Report Share Posted April 9, 2021 Dave, Which mags would you recommend please? Barrel 1:7” twist 22” long. Group was only at 50m ( just barrel break in) but we shot about 4 or 5 groups which were all similar ( impressive really- shot 1, clean it, 2 shots clean it and they all went in the same hole). Looking forward to stretching it out to 800m next month. I had to eat my words a bit because the barrel has a cooler / barrel fins - JP call it a thermal dissipator. I call it a chocolate fire guard and would have binned it from the start but doesn’t seem to have done any harm. https://jprifles.com/1.4.5_hs.php Also of note was the trigger, the idea was to order it with the standard JP trigger and bin it for a Trigger Tech Diamond but the standard JP trigger is excellent-light, clean with a positive and reset so left that in instead. Quote Link to comment Share on other sites More sharing options...
baldie Posted April 11, 2021 Report Share Posted April 11, 2021 I use the CPD 6.8's Dave. Brownells, if they have any. I'll check if I have any in stock, and they could go via our man . Quote Link to comment Share on other sites More sharing options...
ds1 Posted April 11, 2021 Author Report Share Posted April 11, 2021 Pm sent Quote Link to comment Share on other sites More sharing options...
Andrew Posted April 15, 2021 Report Share Posted April 15, 2021 I'm sorry, but that break is ugly; Looks like it belongs on a piece of field artillery. I'm not suggesting that it doesnt function well but to my eyes it looked decidely too "low-tech" for a rifle that is probably hi tech. ~Andrew Quote Link to comment Share on other sites More sharing options...
Kalahari Posted April 15, 2021 Report Share Posted April 15, 2021 Pedant alert! It is a brake. Sorry one of my "nails down a blackboard" things/Is ugly though. David. Quote Link to comment Share on other sites More sharing options...
ds1 Posted April 15, 2021 Author Report Share Posted April 15, 2021 Let’s just call it “fugly” Quote Link to comment Share on other sites More sharing options...
maximus otter Posted April 16, 2021 Report Share Posted April 16, 2021 9 hours ago, Kalahari said: Pedant alert! It is a brake. David. Amen! maximus otter Quote Link to comment Share on other sites More sharing options...
Andrew Posted April 16, 2021 Report Share Posted April 16, 2021 On 4/15/2021 at 1:33 PM, ds1 said: Let’s just call it “fugly” That describes it.~Andrew Quote Link to comment Share on other sites More sharing options...
PCM Posted May 4, 2022 Report Share Posted May 4, 2022 I've got a butt load of Federal 224 Valkyrie ammo if anyone is interested Quote Link to comment Share on other sites More sharing options...
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