223 Jackley (Jim’s Super Ackley) -Maybe build

[Rugerjim]

Hey "bruh's".
Just wondering if anyone would be interested in a wildcat build to follow, basically increasing the shoulder length of your 223 AI 2 or 3 mm for some extra oomph. I could just build a 22-204 I know (and I am building a 22BR), but why not max out the plain old 223 case for varmint lightning? Love to see how hard I can push a 50.

anyone interested?

I'll use a standard chamber reamer and go in 2 or 3 mm deeper, then get a custom reamer made for the die if I can't hit it well with conventional tooling on the lathe.
I'm trying to convince myself it's worth the effort.

 

[BallisticsGuy]

You'll gain basically nothing in terms of powder capacity and shorten the neck so much that I wouldn't stick it in a semi auto since the journey up the feed ramp will almost certainly be able to induce massive runout. You'd be going from around .200-.206" of neck length which is already getting on the short side to around .128 at 2mm to .088 at 3mm. That's a mighty slender amount of neck to hold the pill in correct apposition to the case. It's just not a useful way to burn money.

 

[Rugerjim]

Fair call. And nah it's for a bolt gun. I might just run the 22-204 however I just wanted to really push the little 223 case as far as possible, you know… cause we can