6.5 mm LR/ELR Cartridge Advise

[Bigame1]

Well, after 40 years of turning wrenches and 20 of shooting large magnums,my rt shoulder has
finally started to call it quits.2 surgeries inside of 8 years and the most resent one last week with
a rotator cuff repair,bone spur and torn ligament,it's time to hang up the (big Magnums) for awhile or suffer
the consequences in my later years according to my orthopedic surgeon.

That being said....
I've been looking closely at the 6.5 mm cartridge lineup for LR/ELR shooting.mostly 1k-1.5k

My choices so-far based on std bolt face LA and SA actions,don't want magnums
Taking under consideration,ease of reloading,premium brass choices and availability ,(Lapua/Norma/Nosler)for the particular caliber.

Also considered ,barrel life... who cares.

6.5/06 AI. easy,just necking up 25/06 brass and fire forming
6.5 wsm..to much work
6.5/284 win.. known favorite Lapua brass
260AI Lapua brass,easy no guessing.fire forming
6.5 Creedmore well not sure how it will stand up to any of the above with heavy bullets,but very popular.

Anyway,6.5 Gurus chime in please.

 

[Bigame1]

Have you looked at the 6mmAR.com page ? Robert Whitley has a 6.5 SL that might just be what you're looking for and there is no neck trimming etc. to make this case. Just a FYI for you.

 

[DRNewcomb]

6.5/284 has a high case capacity to get enough velocity for LR shooting.
6.5x55 Swed, just because.

 

[Laurie]

What range conditions are intending to shoot to 1.5K over? There is a huge ballistics difference between a sea level location at 50F and five or six thousand ft ASL at 80 or 90 degrees.

 

[Wildcats]

What range conditions are intending to shoot to 1.5K over? There is a huge ballistics difference between a sea level location at 50F and five or six thousand ft ASL at 80 or 90 degrees.

2-5k feet of elevation and temps from 70-90 degrees

 

[Wildcats]

Have you looked at the 6mmAR.com page ? Robert Whitley has a 6.5 SL that might just be what you're looking for and there is no neck trimming etc. to make this case. Just a FYI for you.

I will look into it..thanks for the tip.
Do you know what the parent case is?

 

[Laurie]

2-5k feet of elevation and temps from 70-90 degrees

At the top end of that range, there are lots of 6.5s that will see you out to 1,500 yards with a good bullet. The 140gn Hybrid at 2,900 fps MV is predicted to be travelling at 1,387 fps and will move under 8-MOA in a 10mph 90-deg crosswind under these conditions. 260AI and 6.5X55 make that easily in 30-inch barrel rifles, and I'm pretty sure that there are already people loading up the new small primer Lapua 6.5 Creedmoor brass to those speeds too.

At 70 deg and 2,000 ft ASL, the 140 Hybrid / 2,900 fps MV is still supersonic at a predicted 1,196 fps terminal velocity and will still likely shoot very well despite being transonic, but for optimum ballistics you'd want to be getting up near 3,100 fps MV and might want a higher performance number such as 6.5-284 or 6.5X55mm AI. As Jerry (Mysticplayer) says also look at the sevens. The 'straight 284' and 180gn Hybrid at 2,850 fps will work under both sets of conditions at 1,500 yards and will give better barrel life than an equivalent 6.5 in terms of ELR ballistics. Recoil might be a mite heavier, but that's what muzzle brakes are for.

 

[Wildcats]

A decent muzzle brake like a Terminator will sort all your recoil problems, just make sure you wear earmuffs

Kiwi,
i will give your brakes a try, in the meantime and see how they do on my shoulder.
looking for one for my 300 win and another for my STW Lr gun.
Right now i'm running the Badger FTE on both of them.
Also my 300RUM only has a Vais on it.
Thanks for the info.

 

[Rockfish Dave]

I will second the 6.5 SLR. Mine is slightly modified but it gives me 2925 fps with no pressure and very low es. Granted I blew out the taper, but it also applies to my fire forming loads.

I can't get the magnitospeed to work with the suppressor attached but my drop is telling me I am in the neighborhood of 3000fps.

http://forum.accurateshooter.com/th...eady-for-testing.3821760/page-4#post-36819432

 

[Wildcats]

I will second the 6.5 SLR. Mine is slightly modified but it gives me 2925 fps with no pressure and very low es. Granted I blew out the taper, but it also applies to my fire forming loads.

I can't get the magnitospeed to work with the suppressor attached but my drop is telling me I am in the neighborhood of 3000fps.

http://forum.accurateshooter.com/th...eady-for-testing.3821760/page-4#post-36819432

Is that rnd based off the 284 or the 260 case?

 

[rickiesrevenge]

SLR is based of the 308 family of cases.

 

[Rockfish Dave]

Parent case is the 243WIN case. I used same lot of Winchester brass.

NO neck turning with Winchester brass. The standard 6.5 SLR-S is just a pass through the FL sizing die and load. Similar to a 6.5 creednore or 6.5x47 lapua only with a little more taper in the body with the SLR-S, or my SLR-S Improved with a little less taper than either the Creedmore or 6.5x47.

STandard or improved you get more case capacity than the creedmore and obviously 6.5x47.

 

[jimbo88mm]

Any of the discussed cartridges can meet your needs, including the plain old 260. If I were in your shoes I would probably lean toward the 260ai.

 

[Wagoner]

A cartridge I am interested in for those same purposes is a 6.5 Creedmoor AI based off of Lapua brass. The AI case design coupled with a small primer pocket should handle higher pressure loads very well. It should be a very efficient and effective round.

Not sure if anyone has tried it yet but it may be worth looking into?

Quinton

 

[Rockfish Dave]

A cartridge I am interested in for those same purposes is a 6.5 Creedmoor AI based off of Lapua brass. The AI case design coupled with a small primer pocket should handle higher pressure loads very well. It should be a very efficient and effective round.

Not sure if anyone has tried it yet but it may be worth looking into?

Quinton

A creedmore Ackley improved with Lapua brass and small primer sounds about perfect.

Not much to be gained on taper, but blowing the shoulder (35-40 degrees) should give more capacity and better burn.

 

[JohnMill]

I will look into it..thanks for the tip.
Do you know what the parent case is?

.243W. He pushes the neck shoulder junction back to get a 30 degree shoulder. I have a 6MMSLR and it's great

 

[243Mendoza]

Have you looked at the 6mmAR.com page ? Robert Whitley has a 6.5 SL that might just be what you're looking for and there is no neck trimming etc. to make this case. Just a FYI for you.

Or the 6mm SLR. The 115DTAC have similar or better performance than the 6.5 140s and the recoil is much less. I have read that the Berger 105 Hybrid is better.

 

[IdahoSharpshooter]

Lets consider the facts. Some require fire forming, so a hundred rounds down the barrel, and then you can start loading.

Or, the 6,5x284 which lets you start loading with round one. Which works with the best factory brass available, the LAPUA.

Any of the smaller capacity cases WILL require a lot more pressure, can you say shorter route to blown primer pockets, and fewer reloads on a case?

I would opine that using the '06 case, which has the same powder capacity as the 6,5x284 can achieve higher velocities ONLY with higher pressure. And, it has nearly 4/10ths longer case, burn time is longer.

6,5x284 will work in a short action.

Elementary my dear Watson...

 

[Andy Work]

A decent muzzle brake like a Terminator will sort all your recoil problems, just make sure you wear earmuffs

Dang! She's holding that rifle as though it were a rimfire.

 

[Wildcats]

Dang! She's holding that rifle as though it were a rimfire.

I got an Email from Greg,looking into his brakes as i type this message.