I just built this 223 Wylde off my old early 70s R700 222. Had it for 20 years bought it from a friend's grandpa when I was in high school. Was mainly used as a calling rifle for dogs and ground squirrels. Shot 40g vmaxes at 3500fps with IMR4198 into 1/4-1-3 MOA pretty regularly. But I've always wanted a long range fast twist 223 for the last 10 years or so and finally made it happen. With the way component prices are, it just made sense. I also got into the LR 22 Rimfire game and built a full blown CZ457 with a Bartlein and shoot out to 500 with it, but that's for another post...
Anyway back to the 223 trainer build. Has a Greyboe Renegade M5 stock, a Bartlein 28" Heavy Varmint 8 twist, oversize bolt knob, Timney set at 1.5#, Leupold MK4 20 MOA base and rings, Leupold MK4 6.5-20x. Custom throated to seat 2.510" with the 75g ELDMs. Shoots 3000-3050 fps at 1/3 MOA with N540. But I'm having issues with cratered and pierced primers, so sent the bolt off to Carlsbad this morning to have him bush it.
The rifle weighs 15# and is set up the same as my 6 Creed and 7-300 Win Mag that weigh 15# and 16#. Only difference is they both have McMillan A5s, and the 6 Creed has a 27" BRUX 8 twist rem varmint with a 4 port brake, and the 7-300 has a 28" Bartlein 9 twist rem varmint with a 4 port brake. I shoot the 108g ELDMs at 3025fps from the 6 Creed with H4350 in Peterson brass, and the 180g ELDMs at 3100 from the 7-300 Win Mag with H1000 in necked down Nosler 300 Win Mag brass.
My 7-300 is my big game rifle, 6 Creed is my dog rifle, and the 223 will be a 1K trainer, PRS/MOA match rifle and occasional dog rifle.
223 Wylde
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Ladder test at 300 with N540/75g ELDM. Blue ink was couple days prior and stopped at 25g due to pierced primer with a CCI 400. Stopped there and decapped all 400s and loaded with 7.5s and went back out (black ink) and made it up to 25.6 before again piercing a primer. 5 of the 6 shots went into a 1" group at 300 so definitely showing promise with a new barrel and fireformed lapua brass. Going to play around 24.6-24.8 at around 2975fps. Looks like a decent and safe spot to be, especially when temps get to the 100s here in next couple months.
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