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Not the fastest .224 cartridge in the world but certainly enough for my needs is the 22-250AI. I built it on an 8 twist barrel 30" long. It drives the 80ELDs around 3500+ very accurately like a literal lazer beam. No problems with bullet separation. Going into a 7 twist I believe with such a fast bullet running much faster RPMs, I think I'd have jacket problems with certain bullets. I think once all my 22-250 ackley brass wears out and 3 barrels later, I'd do the 22 CM just because brass is available for it and no fireforming is needed.We always need a new toy, right?
Debating a 224 caliber build to run 80-90gr bullets above 3300. Thinking but, not limited to Swift, 22/284 or 22 Cheetah with fast twist 24-26" barrel. There are some who say this is impossible due to constraints of caliber/bullet length/twist ratios. The contention is that if you get a twist suitable to stabilize the bullet length, it works against velocity (<3100) and/or bullet integrity will go to pieces due to hyper-twist above 3100.
I definitely see the logic of these constraints but, i have yet to find a guy who has actually experienced these limitations.
I know several of you guys have experience in this department? is it possible to accurately run the heavies above 3300? What say you?
Note: they make barrels everyday—-barrel life not a concern!!!
That's one powder I haven't used in my 22-250AI. Heard great things. I use it in my 6.5-284s with excellent success. I'm going to try it out this winter hoping for your accuracy results. It's definitely a higher velocity powder than any others. I use RL23 with good results maybe similar to the RL26 not sure. I think I'm kinda chasing the lands now after having 1000 rounds on my last barrel. Probably gonna be better for the 88 ELDs. Currently shooting the 75/80s and since the Hornady Amax and ELD loves to jump, accuracy hasn't suffered. I'll be loading some RL26 under some 80 Amax bullets this week.
Yes, we used moly in a lot a different calibers, and it did let the jacket slide better and with less distortion and engraving damage. Actually on the 1,000yd line, many saw improved BC and less drop, and we believe this was from less engraving distortion causing less air resistance. I still have a fair quantity of moly powder, but eventually, most of us went away from the mess. Although, I still have several hundred moly coated 6mm and 224 bullets in stock that are calling my name again.
I eventually got away from the impact plating of moly and the subsequent wax coating. Tossed all of my plating equipment and supplies. No sooner did I get rid of them before guys started asking about moly again. Go figure.
