Building the 223 Jackley (Jim’s super ackley)

[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.

 

[jakelly]

222 rem mag AI…

 

[Rugerjim]

222 rem mag AI…

Yeah it’s not a 223 case though.whole point was to use a 223 case

 

[MarshallDodge]

I'm pretty happy with my 223AI as it is but am curious about what more you can get out of a 223 based case.

 

[Rugerjim]

I'm pretty happy with my 223AI as it is but am curious about what more you can get out of a 223 based case.

Well I figure if we are blowing them out anyway, why not go all out?

 

[huntnh]

I’m listening let’s see what the the good old 223 can do. What bullets are you planning for testing

 

[Rugerjim]

I’m listening let’s see what the the good old 223 can do. What bullets are you planning for testing

I’ll run the plain old 50 vmax since it’s a fair global test - though I know it’s an 8 tw… and maybe a 50 and 62 Rexem. I know 2/3 mm of shoulder length isn’t much but it might yield a few more usable FPS. I’ll be fireforming them with 2207.