Thinking of building in a new caliber.

Longshot

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What caliber,out of all these new calibers(6.5 mystic,6x55 etc)would you guys build a longrange gun in if you had no limits?
I'm thinking about building a new rifle in one of thse calibers.Tell me why you think it's the best way to go.
 
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Depends on the application and how far you consider LR. Table top, tacky, mountain rifle - what finished weight will you want? How much abuse will you tolerate? How much cost per bang will you pay?

At present, I am spending alot of time with the 223, 6.5 Mystic and 7 Mystic.

Played with everything from 22 to 338 so ask away.

Jerry
 
6mm 22/250


it works with a 308 bolt face feeds from 308 mad and you can shoot the awesome 115DTAC bullet out of it(will need a 1/7 or 1/7.5 twist barrel


Jamie
 
Longshot said:
What caliber,out of all these new calibers(6.5 mystic,6x55 etc)would you guys build a longrange gun in if you had no limits?
I'm thinking about building a new rifle in one of thse calibers.Tell me why you think it the best way to go.

For ME, it would be either the 6.5Mystic or the 6.5X47 Lapua, because I love the 6.5 caliber, but like the shorter powder colums, so I would not use the 6.5X55 for that reason.
The reason, if anybody is wondering, why I chose the .308 for our
Fclass/precision rifle raffle, is because my preferences ( and others here!) do not alkways reflect the norm for most people.
The rifle has to appeal to MOST shooters, and you can buy .308 off the shelf.

if it were my rifle it definetly would be in a different caliber, but that being said I shoot a mess of .308 and other calibers when my shoulder will allow!
Cat
 
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I'm giving serious thought to the 6.5x47. Has anyone built/considered building one? Plans are to rebarrel my 6/284 when that barrel gives up. It's a 12 lb bench gun based on a Rem SA.
 
I guess I'm thinking about tactical slanted stuff.Long range for me would be 1000m +.I have a sweet .308 already so am looking to go the next step.I may find myself with a .338L at some point too so perhaps something in between.
Anyone have any pics of these new calibers?Say in comparison to a .308 and/or .223?
 
This post peaked my interest so I've been looking around a bit. Most of the talk seems to be about using the 6.5x47 for 600y comps...is it a good choice for 1000m+??

6547Lapx220.jpg

6547Lapx350.jpg

6mmComparisonx400.jpg

darjdiagx590.png
 
6x47mm Lapua would certainly be an interesting cartridge. The parent case looks great too. Saw Peter Dobson's new project and it's beautiful to say the least.
 
I have a tight-neck 6.5X47 reamer and am slowly assembling the bits and pieces. I would really like to try a 1:7 6-6.5X47 to push some of the 115's. I have more guns than scopes at the moment though and I need to spend my allowance on acquiring some more decent glass.
 
yeah again with the 260 308 boltface and will feed great from any 308 mag

Jamie
 
For opinions on .260 Rem v 6.5X47 Lapua fo to www.65grendel. com (forums) and Load info.

Similar performance, which is to say good. I used Pacific Tool reamer print 9205 for 120-142gr bullets.

Will also build Rem 700 repeater with 26" varmint barrel.

Regards,

Peter
 
I would recommend you look at the LR circles and 1000 m shooters and see what is currently doing well as far as being competitive and winning (www.6mmbr.com). Also, to me, it would be important to know what components are readily available, specifically dies and brass. As such, it would have to be the 6.5-284.

But if it were me, 7mm WSM or even better 7mm-300WSM.
 
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LS, since this is a tacky rifle, depends on how much time you expect to spend 600yds and out. The further you want this rifle to smack, the larger the case and bore.

I also assume that you want a mag fed platform that can handle field use. Something that doesn't weigh a ton or super big/long. 24" pipe as a nice compromise. gives you a chance to mount a brake or 'can' without feeling like you are shooting a musket.

If so, I would eliminate all the improved cases/wildcats and go no smaller then a 308 case volume.

If willing to only use center feed mags, sharp shouldered cases will feed but in a staggered mag, you will eventually have hang ups. So the AI or Savage mags would be needed.

In the 6mm, I would look at a 243 with a 7 twist (maybe even faster) and push the 115gr+ bullets as fast as she will go. The 243 improves are also very nice but there is that mag restriction.

In the 6.5, 260R is the base. If willing to use Center feed mags, the 6.5 Mystic/260AI are very nice. If only going with a 24" barrel, the 6.5-284 would be my choice for an effective 1000m rig. I would build it on a Savage short action and seat the bullets to around 3.0".

In a 7mm, the 284 is just about big enough for 24" pipes. I would prefer the 280 and 7Mystic/280AI as a min. This may surprise you but I think the best in the 7mm for a working rifle would be a 7RM and 162gr Amax or 180gr Bergers.

I have skipped the WSM as I have no first hand experience and they usually don't come in dmags. Also, seating a 180gr Berger to fit in a short mag would limit case volume. Wouldn't use it in a long mag.

The small cases now popular in BR work because you can put them in zero tolerance actions with very long barrels. That allows you to run very high pressures without problems. This is not something that a working rifle will allow and having to hammer a bolt open during field work is not condusive to fast follow up shots.

At least, not from you...

Jerry
 
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I've been thinking of building a 6.5x55 so that it would be better at long range stuff than the 308 but still be ok for the BCRA tactical rules. Other than that the 338's are temping.... I love loading up my 338win with 250gr SMK and smacking the snot out of some steel on our 900m range. No wondering if you hit it or not with the big bullets. I would love to do a 338Lupua some day but the 338win will have to do for a fun 338 till then, might try loading some 300gr SMK in it for the hell of it this summer.
 
I already made my choice; 40X single shot action,trued and tweaked by Dennis, 26" Krieger 1-8"HB, chambered in 260 AI. Stock is synthetic with bedding block, trigger is jewell @ 4oz. REgards, Eagleye.
 
That sounds like a good set up Eagleye.

I also chose the single shot platform for my .308 so I could load heavy bullets long enough not extend into the body of the case. I opted for an additional 2" of Kreiger barrel. My Jewel trigger is set heavy right now, because shooting with gloves in the cold is indelicate. Even in the warm weather I prefer a trigger which is measured in pounds to one measured in ounces - I seem incapable of mastering those. Nothing like a 2 ounce trigger after a few hours of drilling rocks with a pneumatic hand drill!
 
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