6x45 AR

[Bignuts]

Was looking for a different caliber to add to the collection. Went with 6x45 because it was an easy to load ammo and only required a barrel swap. Any one else gone this route? Putting an 18 inch black hole barrel on a rock river. I already load 223 and 243 so all components are handy.

Brett

[FJ540]

Oldman has one.

[forcefed]

Subscribed. I would like to learn a little more about this as well. Looks like barrel availability is hit or miss.

[Bignuts]

Barrel said it was 10-12 weeks out. That's tough for some one used to prime two day shipping.
Got a set of dies a fleet farm of all places. 70$ but that's what they seem to go for.
Now I just need to figure how to get my houge handguard off with out breaking any thing.

Brett

[OldmanFCSA]

I use nickel-plated cases to easily visibly see a difference in loaded ammo.
You definitely do not want to chamber a 6mm round in a 223 chamber, bullet may push back into case, asnd case neck may size down to chamber allowing bolt to close, resulting in a very high pressure overload that will definitely hurt you and your gun. Be vigilant to such errors! Shooting a 223 in the 6mm bore results in poor accuracy and a damaged bore, and partially fire-formed cases in 6mm-223Rem.
Otherwise, mine shoots fine with 75 grain to 95 grain although powder capacity is limited.
DonT., the previous owner of this rifle, shot 65 grain bullets, which I can't seem to use as I load 69 grainers in a 223 case. Besides, Bigger is Better, is what I've always heard.

[Sigfan220]

Just to clarify - You do not need to fire form 6x45. It is simply a necked up 223, nothing else. Simply run a 223 through a 6x45 die and bam - you get 6x45.

Mine is not an AR, it's a custom Remington 600. I have shot it very little. My uncle however is a big fan of the 6x45 for deer and varmint. I personally don't see the pointe, in theory you should gain some ME. But according to the load data the ME gains are minimal.

And yes - it is extremely hard to tell 6x45 from 223 brass at a glance. An improved version would make things a whole lot easier.

[OldmanFCSA]

Just to clarify - You do not need to fire form 6x45. It is simply a necked up 223, nothing else. Simply run a 223 through a 6x45 die and bam - you get 6x45.

And yes - it is extremely hard to tell 6x45 from 223 brass at a glance. An improved version would make things a whole lot easier.

I totally agree - no fire-forming is required - I just meant if you fired a 223 in a 6mm-223Rem you would fire-form the case instead of necking it up with just a die. Not recommended, just letting people know what would happen IF......

I too would like an Improved version to hold more powder.

[Bignuts]

I would love an ar10 type in 243. I'm a fan of 6mm. I would like to use a bullet with a plastic tip to help keep the rounds separate in my own mind, I'm going to decade a couple mags and paint a stripe on them to help. Not shooting 223 and 6x45 on the same range trip will help also.

Brett

[shooter115]

Have you ever looked at the 6mmAR cartridge? My dad built one and has had pretty good luck with it. 6.5 Grendel brass necked down to 6mm. There have since been several variants built off the design as well.
http://www.6mmar.com/

[Erud]

Have you ever looked at the 6mmAR cartridge? My dad built one and has had pretty good luck with it. 6.5 Grendel brass necked down to 6mm. There have since been several variants built off the design as well.
http://www.6mmar.com/

I'm got close to 10k rounds of 6mm AR Turbo 40°fired through 3 barrels. It's a heck of a round for the AR platform. Performance-wise, I don't think there's much that could match it and still fit in a standard magwell.

[Bignuts]

Is the brass available for cheap? If only I had 2000 pieces 6.5 Grendel brass insted of 223.

Brett

[OldmanFCSA]

Have you ever looked at the 6mmAR cartridge? My dad built one and has had pretty good luck with it. 6.5 Grendel brass necked down to 6mm. There have since been several variants built off the design as well.
http://www.6mmar.com/

I'm got close to 10k rounds of 6mm AR Turbo 40°fired through 3 barrels. It's a heck of a round for the AR platform. Performance-wise, I don't think there's much that could match it and still fit in a standard magwell.

Would you be willing to part a few rounds out to me for evaluation?

Or a few thousand if I decide to go that route?

[Erud]

Have you ever looked at the 6mmAR cartridge? My dad built one and has had pretty good luck with it. 6.5 Grendel brass necked down to 6mm. There have since been several variants built off the design as well.
http://www.6mmar.com/

I'm got close to 10k rounds of 6mm AR Turbo 40°fired through 3 barrels. It's a heck of a round for the AR platform. Performance-wise, I don't think there's much that could match it and still fit in a standard magwell.

Would you be willing to part a few rounds out to me for evaluation?

Or a few thousand if I decide to go that route?

You just want some to measure, etc? Sure, I'll give you a few. Are you still thinking you'll want the .50 components? Whenever we end up meeting up for that I can bring some along.

[Rem700]

Been running a 18" Dtech for several years using #1510 75gr Sierra HPs for coyote and 95 Noslers for deer.
Have had pretty good luck using AA2015 no sizzleing muzzle velocities but happy with the 3/8" groups

[Erud]

Is the brass available for cheap? If only I had 2000 pieces 6.5 Grendel brass insted of 223.

Brett

Unfortunately, brass is not cheap. When I started shooting it 3 years ago, brass could be gotten on sale from Alexander Arms for .55¢/case. It seems that now it can't be had for less than 75¢/case. The 55¢ wasn't exactly cheap, but I got a ton of it at that price so I'm pretty well set for for brass for as long as I could want to shoot it. I shoot a lot of competitions with it and have been able to do pretty well, so I feel that for my purposes, it was worth the investment. It may not be for someone else's application. Also, even the .223 is a very capable round at 600 yards with the right loads, so it isn't a quantum leap above what's readily available for much cheaper, but it is better.