Thank you, good informationI have an ar-15 upper chambered in the 224 Valkyrie. From my internet research (which can be hit or miss) most people suggested a 6.5 twist. So I went with 6.5 and am very pleased with the results. 90 grain matchkings work well with varget and I’ve had good luck with power pro 2000mr. It’s a neat little cartridge if you want to shoot longer distances with an ar-15. The 6mm arc seems to be good for that also and may be the demise of the Valkyrie. Heavier bullets are a must though for the Valkyrie I’ve noticed, 70 grain is about as light as I would go. The lighter bullets are better suited for the original ar cartridge 223. Some barrels out there are 7 twist and may work with bullets 80 and below. But if you want to shoot the 90 and 95 grain stuff 6.5 is the ticket. Sierra even recommends a 6.5 twist on the box. I’ve shot some 88 ELD-M with good accuracy, but my barrel really likes the matchkings.
So, you are using a bolt action, What velocity you running the 90gr in the 6.5tw? No bullet disintegration? What accuracy are you getting?I built a 224 Valkyrie on a savage target action and a shilling 26 inch barrel with a 1:6.5 twist. I have been shooting the Sierra 90 grain matchkings with CFE223 and it performs outstandingly. Also I have tried some of the Hornady 88 grain and they do very well too but not quite as good as the Sierra’s.
Velocity is running about 2550 and the bullets hold together with no problems. Accuracy is from a 5 shot group at 100 yards. Yellow dot is under 3/4”.So, you are using a bolt action, What velocity you running the 90gr in the 6.5tw? No bullet disintegration? What accuracy are you getting?
Thanks
What brass is best and how fast did you need to run the 90s to hit the nodes?I worked with the 7T using 90g, Federal and Starline brass. Brass is soft in the case head where the best accuracy node was.
2550 is below the 300kVelocity is running about 2550 and the bullets hold together with no problems. Accuracy is from a 5 shot group at 100 yards. Yellow dot is under 3/4”.
Brass you recommend?I worked with the 7T using 90g, Federal and Starline brass. Brass is soft in the case head where the best accuracy node was.
Let us know how the bolt action works out.I built a budget .224 valkyrie AR15 on a whim because I loved the idea of a far reaching AR15. I fell in love with the cartridge. Very mild recoil. Great accuracy. I primarily shoot Hornady match ammo. I don’t load my own yet. But I have had awesome results and it is a great little round. Accurate and flat shooting. I love it so much I built a bolt action valkyrie as well. I haven’t shot it yet, life has gotten in the way, but I will real soon and it should be a real performer.
As a field shooter I find heavy 22 caliber bullets need near 65,000 PSI and a long barrel to make them staliking varmint grade, then your barrel goes quickly. Any other pressure curve provides a trajectory that increases the difficulty of quick field range estimates.Just a cool name is all it has going for it. Guessing it will be gone in less than a year. Good quality brass will make or break a new cartridge.
Paul
What throat length is your chamber?I built a 224 Valkyrie on a single shot Savage action. It wears a 26" fluted Criterion Stainless barrel with a 1-7 twist. I just returned from SD, where the 80.5 Berger Fullbore bullets were VERY effective out to 800yds. I could have gone longer, but there always seemed to be cows on the further hillside.
I also built my wife a Valkyrie on a Rem 700 action. Same barrel combination. It's a shooter also.
What do you mean by “field shooter?” And yes, you are correct most of my shooting with the .224 is done just at the range. I don’t do any varmint hunting, at least not yet and no real plans to start. The .224 is a bit small for any hunting I would do so it’s just a beer can and target shooting round for me. It gets much better range and accuracy with heavier bullets than a .22-250, at least in my little experienced opinion.As a field shooter I find heavy 22 caliber bullets need near 65,000 PSI and a long barrel to make them staliking varmint grade, then your barrel goes quickly. Any other pressure curve provides a trajectory that increases the difficulty of quick field range estimates.
If you sit at a bench or prone for long enough to range the environment the Valkyrie is a good cartridge. I would assume it would be a reasonable range cartridge.
I have found for 300 to 350 yards 22 caliber has best served me with light bullets with high velocities. I'll get one 600 yard shot for every 20 between the muzzle and 350.