Originally posted by StoneHendge
View Post
.224 Valkyrie? Future competitor to the 6.5 Grendel?
Collapse
X
-
If it's true that we are here to help others, then what exactly are the others here for?
-
-
Following this with interest. Latest article from The Firearm Blog.:: 6.5 GRENDEL Deer and Targets :: 6mmARC Targets and Varmints and Deer :: 22 ARC Varmints and Targets
:: I Drank the Water :: Revelation 21:6 ::
Comment
-
-
Now that we know the 90 gr SMK with a G7 of .256 will be the factory offering why do they keep flogging the "supersonic to 1300" meme? I come up with the 90 gr launched at 2700 going subsonic at around 1150 at sea level at 59 degrees F.
image.png
Sure, it will stay supersonic to around 1350 in my parts, but a 22lr will stay supersonic to 1300 yards if you go high enough.Let's go Brandon!
Comment
-
-
SH, I ran the numbers, as well, using JBM Ballistics calculator and Litz BC for the 90 SMK and 2700 fps from a 24" bbl and at 1100 yds I got a velocity of 1103 fps at sea level and 59 degrees (speed of sound is 1116 fps).
Like I said, we'll see how real-world numbers shake out.
But you'd think Federal's engineers would be able to use these ballistics tools as well as us amateurs. . . .:: 6.5 GRENDEL Deer and Targets :: 6mmARC Targets and Varmints and Deer :: 22 ARC Varmints and Targets
:: I Drank the Water :: Revelation 21:6 ::
Comment
-
-
Engineers yes... but marketeers, well that's another story!! It's an interesting cartridge but seems more of a niche-type.
Plus, in several states (VA is one) deer hunting is verboten with a 223 caliber."Down the floor, out the door, Go Brandon Go!!!!!"
Comment
-
-
Originally posted by StoneHendge View PostNow that we know the 90 gr SMK with a G7 of .256 will be the factory offering why do they keep flogging the "supersonic to 1300" meme? I come up with the 90 gr launched at 2700 going subsonic at around 1150 at sea level at 59 degrees F.
[ATTACH=CONFIG]10067[/ATTACH]
Sure, it will stay supersonic to around 1350 in my parts, but a 22lr will stay supersonic to 1300 yards if you go high enough.
Not sure what ballistic modeling they're using, but a tight twist will help keep it stabilized better through the transition.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
Comment
-
-
JP confirms they are doing 224 Valkyrie.
Goes on to say that one of his teams used 224V for Team Safari a few weeks ago - both Team Members, so one as a carbine and one as a precision rifle. I'm actually heading down to Blue Steel Ranch Thursday for Intermediate "class" - maybe they'll have one there
On another note, the newsletter says they are moving all 22" barrels to an XL gas system.
*Just found results - Team 224V came in 35 out of 42Last edited by StoneHendge; 11-06-2017, 04:03 AM.Let's go Brandon!
Comment
-
-
That property is awesome down there.
Steel Safari is a great match, very fun.
Most guys that win that match are shooting 6mm or 6.5mm, but they are world-class shooters who don't waste any of their effort managing a stage.
Night and day difference between the top placers and bottom placers as to how to work a stage.Last edited by LRRPF52; 11-06-2017, 06:29 PM.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
Comment
-
-
Originally posted by HowaGrendel View Postas someone said....( Marketing ) it often overrides real world use or need.....especially in the gun world.....
Wind drift is the biggest one.
.224 Valkyrie, given the stated mv's and known BCs of the 90gr SMK and Berger, will have less wind drift and drop than a Grendel no matter how you slice it.
You would have to get a 123gr bullet with a higher BC than the 123gr Scenar going 2700fps to match the Valkyrie for wind.
That speed is possible with hand loads using CFE223 from 24" barrels, but the only bullets I'm aware of with a better BC are solids like the 121gr Flatline, and I doubt you're going to get much past 2500fps with those, let alone the $62.4/100 cost.
If you made a 107gr or 110gr that is as long as a 130gr Berger VLD in 6.5mm, then you could match the muzzle velocity of the Valkyrie from a Grendel, and match or exceed the BC.
A 90gr with the same BC is going to have less drop either way, but I care more about wind.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
Comment
-
-
Well, it's for real. Will I be lining up to get one? it didn't make me feel like I had to have one - which is odd for any AR. Lol
Instructor was/is working on prototype JP barrel and brought it to Blue Steel Ranch. 20" barrel with R+2" / 1:7 twist pushing factory 90 gr SMKs in the low 2600s. Shot a 5 shot group with it at the sight in range and it's pretty damn accurate- especially since was getting broken in. Stock was way too short for me so I strung the group vertically around an inch but it was around 1/2" horizontal. Hard to judge recoil since it had a full auto rated Thunderbeast on it and a PRS. Felt like a 223. My guess is that it will be like my 22 Nosler - a sharp 223 - without the hefty can.
Winds were 15+ mph when instructor had it at the KD range. Was really hard for me to see hits on the heavier plates and with the lighter splash with the wind. I did take it to 1k on the last day in the morning calm, but their 1k plate is really heavy and I didn't see any movement or splash but instructor saw trace go in. One of the students rifles went down early the second day (Jewell trigger on a 6.5 CM Surgeon). He ended up using the 224V for the better part of 2 days without knowing what it was! Wasn't hard to see/hear most hits out to 700 on a relatively calm day, but my Grendel was smacking them a lot harder last year pushing factory Amax around 2450. I guess one benefit is that we did a timed stage with 2 shots on each target. Lighter hits mean you don't have to wait for the plate to stop swinging for as long.
90 gr VLDs probably won't shoot well due to jump. Barrel life of around 8k is what Federal is thinking with factory ammo. Pressure is relatively low - powder charges are closer to 223 than Grendel. Was also noted that Federal has been working on hardening their case heads.Let's go Brandon!
Comment
-
-
Pure opinion -- probably not, except for possibly unadvertised tests just to see what it can do.
The arguments against a move like that are very similar to those that have kept the 6.8, the Grendel, and a host of othe 'slightly better than' cartridges seeing more daylight in military procurement channels.shootersnotes.com
"To those who have fought and almost died for it, freedom has a flavor the protected will never know."
-- Author Unknown
"If at first you do succeed, try not to look astonished!" -- Milton Berle
Comment
-
Comment