Long to short???

[dcompton]

I have an old 110 in 7mm RM. I have been building some Ar's in 300AAC Blackout lately and Shaw now offers Savage prefit barrels in 300AAC. I am itching to build a light, shorty bolt gun in 300AAC out of this old 110 that never leaves the safe anymore. Anyone ever run a short cartridge in a long action. I would like to mag feed it with a detachable mag set up. Okay everyone....throw it all out there!

DC

[BoilerUP]

Yes, you can do this; here's a 110 long action that is destined to become a .223 (or 223AI?) and is waiting for a secondhand McMillan A5 to come back from being inletted at CDI.



For starters, you will need a long action .378 bolt head (which is rare) or the kit offered by SSS that allows you to use a short action .378 bolt head on a long action. You'll also need to get CDI's Savage LA/308 mag box DBM (this will probably be easiest).

You might note my action has a 204/223 extended bolt baffle; 308-size magazines sit forward enough in the CDI DBM that you can utilize the extended baffle to shorten bolt throw. With the extended baffle, bolt throw is only about 1/4-1/2" longer than my 10FP.

[dcompton]

Excellent news. I will need .223 mags of some sort to feed the 300AAC. Are you going to use AI mags with this setup for your .223 build?

Dan

[BoilerUP]

Yes, thats a polymer AICS 223 10rd mag in the photo.

[dcompton]

Okay thanks! Couldn't really tell caliber from the mag picture. That's exactly what I need. I'll have to call CDI in the morning.
Now, to find that bolt head.

Dan

[cgeorgemo]

Okay thanks! Couldn't really tell caliber from the mag picture. That's exactly what I need. I'll have to call CDI in the morning.
Now, to find that bolt head.

Dan

Good luck, I tried for 2 months to find one of the bolt heads. SSS sells the extended firing pin nut for $12 shipped, and it only took 1 call...

[dcompton]

I just perused the SSS website....what exactly am I looking for?

Dan

[BoilerUP]

I just perused the SSS website....what exactly am I looking for?

Dan

Just call (many, many times) or send an email (and wait up to a week for a reply); Lisa knows exactly what you'll need and once you finally get ahold of them they can get it to you in short order.

[dcompton]

Alrighty...will do. Oh and on a side note...are you a CJ driver? Just noticed your avatar. I'm an RA390 and B300/350 driver.

Thanks for the info Boiler.

Dan

[BoilerUP]

Yeah, I fly a CJ2+...lots o' pilots into guns it seems!

[dcompton]

Hey it only took 2 calls this morning to get through! Got an extended pin stop nut on the way! Thanks for the help guys!

Dan