My son just killed a Timber Wolf with a 64gr Nosler Bonded Solid Base. Heart shot from 50 yds.I like the 62 gr gold dot/fusion bullets for 223 hunting, they are bonded and retain more weight than most other bullets
My son just killed a Timber Wolf with a 64gr Nosler Bonded Solid Base. Heart shot from 50 yds.I like the 62 gr gold dot/fusion bullets for 223 hunting, they are bonded and retain more weight than most other bullets
That was most likely a defective bullet or bad batch. An extra 1" of twist at 223 velocities is not going to cause that much of an issue. I shoot 55 grain bullets through 2 different 7" twist barrels and have never had that issue in thousands of rounds.8 twist will stabilize anything that is magazine fed. 8 twist will also let you shoot lightweight varmint bullets.
7 twist will cause some lightweight varmint bullets to come apart from centrifugal force. I have had 53g SMKs come apart in a 7 twist.
I have had an AR15 with everything from a 10.5" barrel to a custom 26" barrel. My personal preference is an 18" barrel that is not a bull barrel. Bull barrels add unneeded weight unless you are hunting prairie dogs where the barrel can heat up. But for most people a standard profile is perfectly fine without adding weight.
As far as 5.56 versus 223 there has been several studies done showing a far amount of 5.56 marked guns actually having 223 chambers. Shooting 5.56 in a 223 will not blow your gun up. It might show some pressure on the brass but even that isn't anything to worry about. I have an AD with a 223 match chamber and it has only had 5.56 fired out of it without an issues at all. If shooting 5.56 in 223 chambers caused the gun to blow up we would hear about it a lot more.
And while you are building it install an adjustable has block. Most ARs are over gassed so the manufacturers do not have to do warranty work on a gun that won't fire cheap, underpowered ammunition. With an adjustable has block you can tune the gun and reduce recoil, reduce has in the face, reduce crud in the receiver and make the gun more reliable. With an adjustable has block that is tuned and a quality muzzle brake an AR will Feel like a 22.
Are you wanting more of a varmint/target type setup, or something more portable and lightweight?Barrel length... Sorry
I have all 3 cartridges mentioned, and for hunting, you're correct... The 6.5 Grendel all day long. But for plinking, the 5.56 is the most cost-effective, and for a suppressed or SBR setup, the .300 BLK takes the cake. They all have their place in the food chain.I have a 5.56 and I was going to get a 300 blackout but then I found out about 6.5 Grendel and decided that it was better than either of the two mentioned. Just my .02.
I say Git'r Done!First I bought a Wilson combat 16" 1:8 twist barrel in 5.56.
No, the 300Blk is a 30 cal barrel...the .223 cartridge requires a .223 barrel!So I finally bought a stripped AR lower and decided to build an AR. I've never owned an AR of any kind but always wanted one. Anyways what I'm curious about is what caliber to go with. For simplicity sake I'm looking at either 5.56 or .300 blackout since they both use the same parts except the barrel. Right? So what's the pluses and minuses of these two cartridges?
Any input is appreciated. Thanks all