6mm-223

I have had my best results with 2015 on the zmax and 8208 for the heavier bullets in my 6mm x 45. Six months ago while on the Midsouth site I ordered 2 eight pound(ers) of 8208, and just got them a couple weeks ago. Great timing as I was running low.

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Just ordered a 16" LTM from BHW today. I'm laughing at myself as i'm doing this...removing all 223 varmint guns and replacing them slowly with 6x45 varmint guns...

I got the black with 1/2x28 threads. Came to 290ish with shipping. Plan on using it for sploshing some yotes on the ol tractor when helping my uncle during harvest...

I'm intrigued by this round and was thinking about trying to get an upper or build one for it. Only 500fps less than a .243 WIN apparently. Brass is trimmed and shaped .223 like the 300 BLK is. Anybody have any experience with it?

What would you like to know about the 6x45 aka 6mm/223 I have owned a few for almost 15 years.
It is a poor mans introduction to wildcats.
Velocity is higher with the same weight bullet of a 223 because of increased case volume, decrease in bearing surface and an increase in pushable surface area.
Energy at the same velocity is about a 30% gain over a standard 223 round.

You can legally hunt with this cartridge. It is great in deer/pronghorn rifle out to about 300 yards.

The best part is all the parts stay the same in the AR with just a barrel swap... even mags are the same!

BTW if you need load data I can hook you up with published data.

I'm looking at getting an upper/building an upper and doing some varmiting with it. I already make my own 300BLK cases so I figure this won't be so hard. I would love any info you can give me on it. I'm just mulling over the investment for a wildcat round. I'll probably never be able to sell the barrel if I get one and don't like it. I would also like a 20 inch barrel. Know some resources so I can really research it? I see midway has the dies I need already.

Maybe we can meet up sometime. I go out to my uncles place in Calhan every once in a while. That's Peytonish right?

Redding makes the cheapest dies. One pass through with the taper ball expander and you are done. No trimming or anything.
These are the ones I use:
http://www.midwayusa.com/product/744...-223-remington
Although since RCBS is now making dies at 1/2 the price I could be easily swayed
http://www.midwayusa.com/product/143...-223-remington

I have a 20" upper built for me by Dtech akak Mike Milli. --- no way I will ever think of selling it. Easily sub-MOA.
http://www.dtechuppers.com/ar-15-upper-receivers.html'
One of the other Bonuses of the 6x45 is it is a very forgiving cartride to load for. I haven't found a bad loading that won't keep good groups.
He is the Guru in off caliber AR's and pioneered the WSSM platform AR's with Olympic.
Be prepared for about a year waiting list. He is the go to for hunting caliber AR's and has a large following.
There are some other hotrods now available that are about the same amount of work but a lot more return. 6mmDTI aka 6.8SPC brass necked down to 6mm and you can a lot more velocity with the extra case capacity. White Oak Armory is making the same with slightly different case dimensions called a 6mmWOA.

Yes Calhan is 8 miles from me, 6 miles from my work. Yes Peytonish.

Also consider the 6TCU, the AR's I've run it in seem to have forgotten that a 40 degree shoulder has difficulty feeding, and the TCU chambering gives you a little more juice.....the downside being the heavy bullets get set way back in the case to make ML.
6MM Grendle is no slouch either. Change the size bushing and expander ball on 6.5 G dies and you're good to go.

i run 1 20" (BHW tube) and have a second 16" (BHW tube) coming in 2 weeks. I love the way the round shoots. I have had my best success with 8208 and the 75gr vmax. This gun smacks pdogs damn good, along with the occasional yote. Almost contemplating into making a switch barrel on one of my savages in this round also. Try and stick within the varget burn rate if you want to tinker with loads. I use all FMSRP's...Tips are seated to mag length....I also switched all my uppers and lowers to billets for this round. I guess it's a novelty kinda thing, and it helps me keep the calibers separated.

Wow! Thanks for all the info. I want to stick with my standard AR mags since I cant get any new ones (maybe someday we will get our freedoms back). The 6.5 and 6.8 use different mags dont they?