Valkyrie
- Thread starter prairiefire
- Start date
How fast are you getting out of that load?
I am at 24.5 gr in Lapua brass at 2.445" gets me like 2970-2980 with a 24" tikka 223 bolt gun. I can go higher before I see anything pressure related, but that is where the node is for me (<10 SD and shoots in the .2-.4 range at 100)
Is that reasonable?
Yes the pockets were probably toast, but it was more to just see how fast they would go before I saw serious pressure signs. Maybe my barrel has a really long throat or something like that which is why I didn't see anything crazy. I walked up at .1 gr increments only shooting 1 at a time.
But to stop said thread derailment.
QL is predicting like 2984 fps out of a 80 eld at 2.28" oal using 28.9 gr of RL 17 with a 24" tube which is at the 55ksi saami pressure spec. Estimated 103% case fill.
I'm not disagreeing with what you get in a 24" bolt gun with 24.6g or what QL says RL17 will get you.
I'm discounting that you said you get 2875 with 80 ELD in a 18" or 20" AR at 2.3" with 25g 8208..
I'm discounting that you said you get 2875 with 80 ELD in a 18" or 20" AR at 2.3" with 25g 8208..
I've seen some people running >25 gr of 8208 with a 23" Bolt Gun Barrel getting over 3150 out of the 75 ELD and my testing with the 75 vs 80 ELD is only approximately 35 fps different in my Tikka at the same charge weight.
The people that I've seen doing that say that the Brass is toast after one firing.
But again like I said I was only going up to see how fast it would go. Had had to be WAYYYY over pressure and would never feed a rifle a steady diet of it.
So lets get back to 224 Valk.
Maybe I was not clear. I was discussing the 80 ELD going around 3k. I stated this due to some of the preliminary data that has come out of QL.
Seen some reports of the 90 going nearly 2900 though with a super compressed charge of RL17 from some other places I follow. Then again at the same time I have heard the 90 SMK is not the most consistent;y accurate bullet out of a 1-7 twist barrel.
preliminary data coming out of QL or Federal is not lining up with anything we've seen real world from actual people with 20" 224V in hand. not even close to reports we were initially fed. we are seeing numbers exactly what I was expecting. and what people get with RL17 hot rodding loads never to be able to load those cases again is not the same.
I got the same Email. Glad they are looking out for their customers but have to admit I'm now a bit worried that I may fed into the hype a little too quickly. We shall see.
My views about the V are leading me to a wait-and-see approach. There appear to be teething pains associated with the new arrival. Not a deal breaker, but still something that cautious me would prefer to approach with minor trepidation. This primarily because I think that later products will have improved design.
The off-topic comments on .223 are always enjoyable to follow. FWIW, my pair 5.56 24" 1:8" run virtually flawless with the rifle length gas system, 50gr through 75gr, and I understand that the criticisms refer to the V.
I saw that Midway was running a one-time-only deep discount on 240rd of IMI 77, and mine is scheduled to arrive tomorrow. I also have an AR Stoner 16" Upper coming in Wednesday that uses a 1:7" twist, so I guess it'd be worth a try to run it with some of the IMI. I am mindful of Padom's high praise for the IMI 77, and that had some influence in my breaking down and initiating the purchase of the ammo. If it's a disappointment, I will only blame myself. I get to make all my own purchasing decisions, and nobody else could be culpable for disappointments. Actually, I have good expectations for both purchases.
The AR Stoner Upper will be a crapshoot anyway, since it received a positive buyer's review, but only one review so far. If it works, it'll be a cheaply obtained thrill; and if it doesn't, it's still probably be OK for Combat Matches. It's mainly to fill a hole in my set of capabilities following the possible misplacing of a pair of 16" Uppers. That part is puzzling, but bottom line, I can't put my hands on them after a couple of weeks of searching and inquiry, and the need remains. I have some hunches, and they may still turn up.
Greg
The off-topic comments on .223 are always enjoyable to follow. FWIW, my pair 5.56 24" 1:8" run virtually flawless with the rifle length gas system, 50gr through 75gr, and I understand that the criticisms refer to the V.
I saw that Midway was running a one-time-only deep discount on 240rd of IMI 77, and mine is scheduled to arrive tomorrow. I also have an AR Stoner 16" Upper coming in Wednesday that uses a 1:7" twist, so I guess it'd be worth a try to run it with some of the IMI. I am mindful of Padom's high praise for the IMI 77, and that had some influence in my breaking down and initiating the purchase of the ammo. If it's a disappointment, I will only blame myself. I get to make all my own purchasing decisions, and nobody else could be culpable for disappointments. Actually, I have good expectations for both purchases.
The AR Stoner Upper will be a crapshoot anyway, since it received a positive buyer's review, but only one review so far. If it works, it'll be a cheaply obtained thrill; and if it doesn't, it's still probably be OK for Combat Matches. It's mainly to fill a hole in my set of capabilities following the possible misplacing of a pair of 16" Uppers. That part is puzzling, but bottom line, I can't put my hands on them after a couple of weeks of searching and inquiry, and the need remains. I have some hunches, and they may still turn up.
Greg
@Birddog6424 My ballistic calculator tells me exactly the same thing, is this all observed data downrange? The advertised BC sounds pretty awesome, if you're telling me it's accurate thats exciting.
I have a new Aero Precision set of recivevers tucked away in the safe for this round. I have just been waiting for the manufacturers and the R&D team (consumers) to work out the kinks. The original 1-7 twist seemed a little slow for the 90smk and I'm sure some are finding that out the hard way, I also recall recently reading about some bad batches of the 90smk factory load being out of spec and over pressure blowing primers.
am i reading this right? is this 300 yds?I've tested 4 different 26" 223's by Bartlein, Shilen, Criterion, Mullerworks and soon Kreiger. I would love to see your chrono numbers shooting 80 ELD's out of an 18" barrel at 2875 in a 223 cause I don't believe it...
im.getting 2850 with 80's out of 4 differenr 26" 223's and it's within a few fps in every one of these barrels. 24.6g Varget which is on the higher side and 2.5" coal 80 Amax and 80 ELD. Not sure how your getting higher velocity out of a barrel 8" shorter and the bullet jammed down in the case 0.2" farther than me taking up that extra case capacity.
Actual numbers
I finally got my Valkyrie together and have been shooting it some. I went with a Craddock Precision 22" 6.7 twist Rock Creek barrel with rifle +2" gas system.
I'm getting just under advertised velocities for all the loads and I'm sure my barrel will pick up some velocity in the next 50-100 rounds. Out of the gate the 90gr gold medal was right around 1/2moa with the 75gr FMJ and 60gr ballistic tip being just under 1MOA. After about 80 rounds I gave the barrel a good cleaning and everything tightened up. The gold medal is shooting itty bitty knots and the FMJ and ballistic tip are hovering right around 1/2moa. The gold medal is producing SD's of 5-7 for 10 shots and ES's around 20.
I'm having some issues with the 60gr ballistic tip loads. If I mag feed them they're getting jacked up enough going in that they'll only shoot 1MOA, but if I single feed them they tighten right up. Not a huge problem but just something I'd like to note. I've noticed the same thing with some other bullets in AR15's.
I'm getting just under advertised velocities for all the loads and I'm sure my barrel will pick up some velocity in the next 50-100 rounds. Out of the gate the 90gr gold medal was right around 1/2moa with the 75gr FMJ and 60gr ballistic tip being just under 1MOA. After about 80 rounds I gave the barrel a good cleaning and everything tightened up. The gold medal is shooting itty bitty knots and the FMJ and ballistic tip are hovering right around 1/2moa. The gold medal is producing SD's of 5-7 for 10 shots and ES's around 20.
I'm having some issues with the 60gr ballistic tip loads. If I mag feed them they're getting jacked up enough going in that they'll only shoot 1MOA, but if I single feed them they tighten right up. Not a huge problem but just something I'd like to note. I've noticed the same thing with some other bullets in AR15's.
Good to hear it's shooting the 90's well. My 22" Bartlien from Craddock should be arriving in the next couple days.
Similar threads
