What setup allows for the feed of the longest 223s?

[XTR]

As the title states. What is the setup that will allow for the longest OAL 223s in a bolt gun? and what would be the max OAL?

 

[Ned Ludd]

Clarification?...not sure what you're really asking here, Wade. My latest .223 has a Defiance action with coned bolt face/no ejector and I'm pretty sure I could handload/feed any .223 load made. Even if there was just enough bullet to barely hold it in the neck, it would still load just fine (i.e. - not too long to single feed). In other words, my action can already take the maximum possible length .223/90 VLD load as it currently sits, no modification necessary.

If you're asking about freebore, I think you could probably go out to about .250" - .275" and still keep enough shank in the neck to hold the bullet...as long as your optimal seating depth was off the lands about .015" like mine. If optimal seating depth was into the lands .010",, then shorten those values by about .025". I'd estimate you could end up with a .223/90 VLD loaded round of somewhere in the neighborhood of 2.750" COAL. It wouldn't have very much shank in the neck, but it may be possible.

 

[XTR]

I get single feeding. The question is mag length systems. I suspect that there are systems out there that allow something considerably longer than an AR mag but I'm not sure what they are.

 

[fredo]

You can feed 2.500" OAL from an MDT or AI polymer 10rder. A bit of Dremel work might get ya a couple/30 thou. more...
What bullet/freebore are you wanting to run?

 

[BlackburnBuccaneer]

I have a custom T3 in .223 in a KRG X-RAY that I use for F/TR - whilst I normally use a bobsled, I do have a couple of MDT mags. In these Mags I can feed rounds out to about 2.560" which is useable for up to 80gr bullets (apart from the 80VLD which ends up too long in my chamber) but is never going to work with 90's.
I must admit that my experience is limited to 50-100 rounds in the last 1400 as I am usually either load testing or shooting in slowfire competition or practice.

There is also the Accurate mag .223 mag which I believe allows an oal a good bit longer than an AR mag but from what I have seen is still a bit shorter than the MDT

 

[Keith Glasscock]

The rem 700 SA mag has a block at the rear that can be removed and a full length follower installed. Theoretically, you could feed 2.800" rounds.

 

[XTR]

Just kicking the idea of a bolt gun that can run 80s from the mag with what I consider proper seating depth. (In general, the neck is for holding the bullet and the rest of the case is for powder)

Just pondering something, nothing planned.

 

[USMCDOC]

Just kicking the idea of a bolt gun that can run 80s from the mag with what I consider proper seating depth. (In general, the neck is for holding the bullet and the rest of the case is for powder)

Just pondering something, nothing planned.

Gonna shoot a boltgun XTC?

 

[GrocMax]

MDT AICS style poly is purty long (2.5"+), most AICS style should be the ticket for a detachable mag, but a lot of OEM internals will accept a pretty long OAL.

If you're contemplating an AI type case the single stack MDT pretty much fixes all the feeding issues an AI case presents. For plain 223 or 6x45 or other non-AI shallow angle shoulders the double stacks work fine.

I was never 100% satisfied with my 6TCU until putting the MDT AICS single stack setup in it.

That AR 2.260" OAL pretty much kills the potential for every cartridge except the 223 based 20's and the 17's, its perfect for those but a huge compromise for everything else.

 

[22DASHER]

If you have a 700, all you have to do is take a 223 sized box and cut out the spacer, then remove material from the sides of a 308 size follower until it slides up and down freely, then adjust top of follower or mag box to keep loaded rounds under feed rail. Works like a charm, cheap and you can load as long as you want.

Steve

 

[USMCDOC]

Just kicking the idea of a bolt gun that can run 80s from the mag with what I consider proper seating depth. (In general, the neck is for holding the bullet and the rest of the case is for powder)

Just pondering something, nothing planned.

I can remember when Fin, Fur and Feather had come out with those "80" gr bullets that were supposed to be mag length.. And if Bubba Beale could have been able to make those powder tungsten core bullets shoot at a lessor cost!

 

[Berger.Fan222]

If you have a 700, all you have to do is take a 223 sized box and cut out the spacer, then remove material from the sides of a 308 size follower until it slides up and down freely, then adjust top of follower or mag box to keep loaded rounds under feed rail. Works like a charm, cheap and you can load as long as you want.

Steve

Yep. You can only get to about 2.4" with the unmodified Rem 700 magazine in .223. Dunno if it would be easier to switch to a .308 magazine and modify it to work, or if beating the .223 magazine into submission would be the easier path to reliable feeding of a .223 with bullet exceeding 2.500" OAL.