Would you please post the case capacities of the three cartridges.Both a 22 BR and Dasher are bigger than a 22 ARC(Grendel). I'm curious why you believe a 22 ARC should be as fast as either of them.
Thank you.
Would you please post the case capacities of the three cartridges.Both a 22 BR and Dasher are bigger than a 22 ARC(Grendel). I'm curious why you believe a 22 ARC should be as fast as either of them.
I don't remember specific h2o numbers but in order from least to most is ARC, BR and Dasher.Would you please post the case capacities of the three cartridges.
Thank you.
I've seen no difference in thickness nor how they handle pressure between the common Lapua 220 Russian vs 6.5 Grendel Lapua brass. Both handle really high pressures very well as compared to anything else I've found. I've blown 220r brass out to grendel length and cam to the same conclusion that way as well. Both are excellent brass and will be hard to beat at handling pressure.I am a bit late to the party, but has anyone sectioned a 22 ARC and compared case wall thinkness to a Grendel case? When Lapua designed the 6.5 Grendel case, the emphasis was on max case volume for the 52,000 psi max needed for good AR15 bolt life. This led to relatively thin case walls near the base. When combined with the deeper Grendel AR15 bolt and generous entrance chamfer on the base of the chamber for reliable feeding, overpressure rounds are prone to expansion near the case head (the "Dreaded Grendel Magnum Effect- bottom photo). With overgassed semi-auto guns that start extraction too soon, it is a bigger issue.
I do not have a good idea of how much of the problem is early extraction vs reduced case support and wonder if the same thing might be seen on the "AR-like" bolt of the Uintah Precision rifle mentioned earlier in this thread.
Although most bolt action rifles provide better case head support than an AR15, I wondered if Hornady hedged their bets a little and thickened up the case wall near the web. Thanks
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I was looking for that information a few months ago, and I could have sworn that the information I dug up on line indicated that the 22BR was around 35gr of H20, BRA and ARC were around 38gr. I think I ended up finding information on the 6mm cartridges and using that to estimate what their 22 counterparts would be. I don't think I was looking for the Dasher at the time though. Pretty sure I was confusing it with the BRA when I posted earlier. Based on what I can find on line (including GLShooter's info above) it looks like the 22 ARC and BR are identical for all practical purposes. My thought a few months ago was that the ARC brass would likely be more available (more companies making it), and therefor less expensive. So far, that doesn't really seem to be playing out but time will tell.Both a 22 BR and Dasher are bigger than a 22 ARC(Grendel). I'm curious why you believe a 22 ARC should be as fast as either of them.
https://bulletin.accurateshooter.com/tag/22-dasher/#:~:text=As you can see it,the norm at 4200 fps.
Some tidbits in the above article for nightstand reading.
Down low in the page it says the 22 Dasher holds 41 grains of H2O.
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I think the bolt face is going to be what keeps it from becoming popular. Shame.Oh boy!, i forgot i had asked
From what i can see the weak point is the poor little ar-15 bolt head. What a drag..
Toss it in a boltgun..and well ill take the 22ppc.
Once i started reading how the ar-15 bolt face is opened up for the grendal case the wind went out of my sale..then not long after i started seeing blown bolt photos on google images from folks pushing it a little to hot..i kind of have a very, very bad tendency to do that so i dont think its for me.
It sure is a sexy little case..i do love the looks of it.
Be careful if you think you can neck down 6ARC brass to use in 22ARC THAT WILL NOT WORK. Trim to length on the ARC is 1.510" while 6ARC brass trim to length is 1.490"!!!!20 years ago I built a 22-204, I wish the Grendel case would have been available then. I have Howa Mini's in 6.5G and 6mm ARC, looking forward to playing with a 22 AEC.
I made a mistake here the trim to length for a 6arc case is 1.480"Be careful if you think you can neck down 6ARC brass to use in 22ARC THAT WILL NOT WORK. Trim to length on the ARC is 1.510" while 6ARC brass trim to length is 1.490"!!!!
What length does the 6MM ARC grow too when you size it down to 22 ARC caliber? Have you tried it?I made a mistake here the trim to length for a 6arc case is 1.480"
I had no issues necking down Hornady 6ARC brass and running it in my ruger gen2 22arc. The necked down 6ARC case oal came out .002” shorter than fired Hornady 22arc brass. My 80eldm load was jammed so I wasn’t worried about strechting case heads. Granted I just necked down a few pcs to shoot groups to see if it would work.Be careful if you think you can neck down 6ARC brass to use in 22ARC THAT WILL NOT WORK. Trim to length on the ARC is 1.510" while 6ARC brass trim to length is 1.490"!!!!
Since you're necking down anyway, I'd suggest partial neck sizing to create a false shoulder vs jamming. Just my 2 cents though.I had no issues necking down Hornady 6ARC brass and running it in my ruger gen2 22arc. The necked down 6ARC case oal came out .002” shorter than fired Hornady 22arc brass. My 80eldm load was jammed so I wasn’t worried about strechting case heads. Granted I just necked down a few pcs to shoot groups to see if it would work.