.30 Remington AR

Vince · Posted: Wed Oct 23, 2013 12:44 am Post subject: Re: .30 Remington AR

I'm now also looking at the .30 AR as a possible round for a project I have in mind...the same project where I am also looking at for the .30 BLK.

All of these calibres look suitable for the project, but the .30 BLK looks like a winner because .223 cases are a lot easier to source, and a damn sight cheaper, than either .284 Win or .450 Bushmaster cases.

Elvis · Posted: Wed Oct 23, 2013 12:55 am Post subject: Re: .30 Remington AR

the hat was the 2nd clue to the scope. read a testfire on them the other day so had inkling thats what it would be.
an aimpoint.
as for calibre.... might be .270!!!!or 30/06??? or 9.3????
definately hits hard and is a long action..cases look that size to me.

Elvis · Posted: Wed Oct 23, 2013 12:57 am Post subject: Re: .30 Remington AR

didnt you Aussie lot call them the "myna" cartridges??? or something along those lines??? have seen an article on a adapted hornet somewhere about them.

slimjim · Posted: Wed Oct 23, 2013 4:52 am Post subject: Re: .30 Remington AR

Elvis wrote:

the hat was the 2nd clue to the scope. .... as for calibre....

You were right, Elvis. It's an Aimpoint.
www.aimpoint.com/us/pr...duct/H34L/

7mm Rem Mag is the caliber, but it sure doesn't look like it kicks like a 7mm.

chambered221 · Posted: Wed Oct 23, 2013 5:27 pm Post subject: Re: .30 Remington AR

Impressive shooting indeed !!!

I agree....... sure didn't look like 7 mag.

XcountryRider · Posted: Sat Nov 02, 2013 10:08 pm Post subject: Re: .30 Remington AR

Vince wrote:

I'm now also looking at the .30 AR as a possible round for a project I have in mind...the same project where I am also looking at for the .30 BLK.

All of these calibres look suitable for the project, but the .30 BLK looks like a winner because .223 cases are a lot easier to source, and a damn sight cheaper, than either .284 Win or .450 Bushmaster cases.

This chart maybe of some help.

Elvis · Posted: Sun Nov 03, 2013 2:47 am Post subject: Re: .30 Remington AR

interesting. wonder if the blk was given the extra 2" of barrel just how much better than the x39 it could be?

Vince · Posted: Sun Nov 03, 2013 3:49 am Post subject: Re: .30 Remington AR

Interesting...good thing about the BLK is it can be loaded subsonic and is still effective albeit at reduced ranges and velocity.

Pumpkinslinger · Posted: Sun Nov 03, 2013 11:24 am Post subject: Re: .30 Remington AR

Vince, I'm sure you could load the .30 RAR to subsonic velocities also. It would be interesting to see what a 220 grain bullet would do in the RAR. However, if you stick a 150 grain SST in the .30 RAR it will be supersonic out to about 1,000 yards (according to Hornady's ballistics calculator). Please remember that my original interest was in an AR-15 DEER platform.

slimjim · Posted: Sun Nov 03, 2013 7:42 pm Post subject: Re: .30 Remington AR

Pumpkinslinger wrote:

you could load the .30 RAR to subsonic velocities also. It would be interesting to see what a 220 grain bullet would do in the RAR.

The .30 RAR doesn't have a fast enough twist rate to stabilize a 220gr bullet subsonic. I think most subsonic barrels in .308 have a 1:7 twist. Otherwise the bullet will just tumble after it leaves the barrel.

Pumpkinslinger · Posted: Sun Nov 03, 2013 10:44 pm Post subject: Re: .30 Remington AR

Thanks Slim. Looks like a .308" with a 1 in 10" twist would stabilize a 1.4" long bullet (Greenhill formula). I don't know the length of a .30 cal 220 grain RN but some .312" 200 grain Grand Slams that I have measure 1.28".

Elvis · Posted: Sun Nov 03, 2013 11:24 pm Post subject: Re: .30 Remington AR

1.02 is the length of the cast 220 grain slug that we can buy over here cheap as...under $20 for 50.

Vince · Posted: Mon Nov 04, 2013 12:39 am Post subject: Re: .30 Remington AR

Don't know the length of the 220gn boollit...but I soon will...my mate picked up a mould the other day.

He has decided he wants to go the .30 BLK route and has tooled up to form cases (we have hundreds of .223 cases to spare), cast boollits and load.

I now have an old .303 barrel that is in good condition, and that should be suitable to build something around.

Elvis · Posted: Mon Nov 04, 2013 12:56 am Post subject: Re: .30 Remington AR

have a squizz on trademe auction site in hunting and shooting/ cases and projectiles.

slimjim · Posted: Mon Nov 04, 2013 6:30 am Post subject: Re: .30 Remington AR

Vince wrote:

I now have an old .303 barrel that is in good condition, and that should be suitable to build something around.

Vince, what is it's twist rate?