Home Forums Hunting & Shooting Custom Rifles & Wildcats Tell Me About the 6mmSuper LR......

I am a bit interested in this......something very low recoil yet fully capable of great accuracy at "long range".....

Great possibilities as a LR varmint target round and with plenty of punch for varmints/deer without kicking the hell out of you.

115 6mm VLD's etc at 3100 fps seem like a very good combo for varmints and targets;cases very easy to form,dies available...great accuracy from what I read...kinda like a scaled-down 6.5/284(?)

Surely someone here has used it and can comment...all input welcome!

You read my mind, Bob; I read the article in the latest PS and was pretty intrigued.

Sounds like it may be cool for varminting if it was throated for lightweight varmint bullets.. bet it would scream with a 70 grain blitzking!...

Here is some more info Bob,

http://www.6mmar.com/Super_LR.html

No mention of barrel length for the super LR. I would guess in the neighborhood of 28-30".

6mmBR.com has several interesting 6mm cases mentioned. The 6XC might be one of the best. The 6XC has a huge support system thanks to David Tubb. It was designed to have an OAL of 2.750 allowing the 115 DTAC to fit and feed properly from a short action. The case is smaller than a 243 with very similar performance and longer barrel life. Check it out: http://www.6mmbr.com/6XC.html

Here is a great paragraph on its long range capabilities:

BALLISTICS: The 115-grain DTAC has approximately 10 points lower BC than a 142gr 6.5mm Sierra. Everybody's BC calculations vary so I believe this is the best way to evaluate it against the 142gr 6.5 Sierra. (Also if you look at the Berger 115gr 6mm keep in mind that Bergers BC's are not conservative at all.) This means that if you shoot the DTAC 115 at 3000 fps verses the Sierra 142 at 2950 fps then the drift at 1000 yards is virtually the same.

Interesting stuff

efw: The author had a good concept.It seems to work well....I like that it can be formed so easily from common brass

AZshooter: Thanks for the links!

Yeah its a somewhat domesticated wildcat.

As AZshooter suggests, I have a feeling that to get the velocities he cites in the article it'll take more barrel length than a sporting rifle allows.

He did say that is has a similar case capacity to the 243 Win.

Yes, what I was thinking....the whole topic brings to mind the question of what's wrong with a fast-twist 6mmRemington?I know it may burn too much powder for th target boys but for hunting the capacity may be good for getting the velocity from those 115's....

And again, from the files of there's really nothing new under the sun.....

I've got an identical case done by the late Seeley Masker that dates back from the late 1980's or so, shortly after Berger came out with the 105 VLD's. His was dubbed the 6x30BS. Which, more than likely, was/has been done prior to that.

aalf....Aaha! There you go; I did not know that.Thanks!

I'd have to look past the extra neck length and just go 243AI. But that's me...

Jpro,sure...another good option.We sure ain't short on good 6mm cartridge options.

This was developed by the target/match shooters, to whom I guess the most with the least powder is the objective.They were looking for a long neck, like the 6XC,but with a skosh more capacity to comfortably get 2950-3000 fps with the 115 VLD bullet;yet eliminate the 20 degree shoulder of the 243 Win for a 30 degree shoulder,and have a longer neck than the 243 as well.

It is said by some that the short neck,and sloping shoulder of the 243 contributes to short barrel life in a match rifle....

Plus, the author (most recent Precision Shooter)noted that the cases are best formed from WW or Remington 243 brass with one pass through the die;no trimming,reaming, etc.

Because the thickness of the necks and shoulder are the same on WW and Rem brass, there is no donut formed;but not necessarily true with Lapua.....so they say, but I dunno personally.

Also, the longer neck gives more latitude in bullet selection when still being optimized for the 105/115 VLD's, and still staying within the confines of a S/A for hunting applications. I can see no downside.

243 - 105VLD - Seeley's 6x30BS (the "new" 6 Super LR)

[img:center]http://[/img]

I think I'd have to go with the 6mm Crusader.

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1014170#Post1014170

Interesting stuff! Which to choose!

I'd sure like to know what barrel lengths are needed to obtain those velocities without a hot load, as claimed.

It equals a 243 in case capacity, and they are claiming a 115 grainer at velocities that most 243 struggle to run a 100 grainer.

Too good to be true? higher pressure than normal? LONG barrel?

Go for it...if you want a rifle with ZERO reale value.

244 Remington will do anything it will and a minty 722 can be had for <$800 and will shoot bug holes.

Bob,
From
http://www.6mmbr.com/243Win.html


".243 Win For Tactical Comps We asked GA Precision's George Gardner why he chose .243 Winchester for his Tactical Comp Gun. He replied, "Why would I run anything else? Think about it. I'm sending a .585 BC 115 at 3150 fps--that'll shoot inside the 6XC and .260 Rem with ease. I'm pretty sure I have found the Holy Grail of Comp Rifles. There are no brass issues like you can get forming .260 brass. I don't have to worry about doughnuts, reaming necks--none of that. And the choice in brass is great too--run Lapua if you want max reloads and great accuracy. Run Winchester if you're on a budget, and so you won't cry if you lose some cases in a match. I can get 10-round mags, and feeding is 100% reliable, since the case is identical to a .308 except for the neck. Accuracy-wise, I don't think I'm giving up anything to the .260 Rem or the 6XC." We then asked George if he'd considered using a .243 AI instead: "Yeah, the cases look cool with that 40� shoulder, but I think the standard .243 feeds a little better. And I don't think I really need the extra performance of an improved case. Run the ballistics for my load--115 moly DTAC at 3150 fps. You've got less windage than a 2950 fps 6.5-284, with cheaper brass, cheaper dies, cheaper bullets, and less recoil."



dave

Oldman,

I am seeing a trend with you. You are very negative and in this case don't have a clue.

Resale? Who cares. Most of us are into making rifles that fit our needs and will most likely die with the rifle. If we do sell it one of our friend's will buy it. Who cares about resale? I don't make my customs to sell I make them to please me.

And as to your sage comment: "the 244 Remington will do anything it will and a minty 722 can be had for <$800 and will shoot bug holes." It may shoot well but it won't stabilize a that 115 DTAC. A factory barrel does not have enough twist.

I guess every forum has someone like you.

Personally I have become a huge fan of the plain vanilla 6mm Remington. The more I use it, the more I enjoy it.

I have a Tikka T3 at the 'smith at the moment getting rebarreled from .243 to 6mm Rem. Part of this is to minimize the calibers I use, but mostly "just because".

With a pocket full of 5 round detachable box single stack mags, I see the T3 in 6mm Rem as a fine general purpose, jackrabbits to rockchucks to coyotes to mulies kind of rifle.

I guess it really honestly does not matter which flavor of 24 caliber a guy likes, as long as he is having fun.

Running 115's at 3100+ has to be pushing the pressure envelope in 243ish capacity cases.
I've often wondered how much merit there is in Ken Howell's 220 Howell, 30 06 necked down to .224 squirting 75 gr. a-max's in the 3500 range in the low 50,000 PSI range with supposedly way longer barrel life than lower capacity, higher pressured vessels trying to do the same.
There is no free lunch. Sounds like you are talking a custom barrel at least. The best bet might be a 240 weatherby,or 6mm06 if you want, and run those speeds at a comparative yawn pressure wise.