6x47 vs 6.5x47 Lapua

[Mark Walker in TX]

Ray,
please.... all I want to know is the proper name for this new chamber.

The new brass is 6.5x47 Lapua.

If you want to use the new 6.5x47 Lapua brass, just tell your smith that you are using the new 6.5x47 Lapua brass and you intend on necking down the brass to 6mm.

 

[Cheechako]

Ray,
please.... all I want to know is the proper name for this new chamber.

Buzz

On another thread,or maybe it was this one) I suggested that we all agree on a name for the 6.5x47 necked down to 6mm in order to avoid exactly this kind of confusion. But there are some guys who have already done their own and it would not be fair to them to ask them to conform to somebody elses name. So, at the present, there is no "proper" name where you can go to your gunsmith and say, "make me one of those". At this point shcal has the best advice. 1)Get your own reamer, call it whatever you want, and then you know exactly what you have. 2) Call Dave Kiff to see if he has any reamer prints and ask him to recommend one. He's knowledgable and will be able to help if you tell him what your after. Or, 3) contact one of the guys who have already done the deed and see if they'd be willing to let you ride along with them. I don't know what else to advise. I'd go with number one but I've done a lot of wildcats in the past and you may or may not have the experience to go it alone. Good Luck.

Ray

 

[Shiraz]

Why not call any 6 x 47 that has been derived from a 6.5 x 47 Lapua case, a "6 x 47 Lapua"? I think it's logical, except you just can't buy brass already made up.

 

[Wild_Bill]

Why not call any 6 x 47 that has been derived from a 6.5 x 47 Lapua case, a "6 x 47 Lapua"? I think it's logical, except you just can't buy brass already made up.

Shiraz that is what we basicaly decided on the other thread if it is just necked to 6mm with no other changes call it the 6X47 Lapua but if you change any other dimensions you name it what you like. Also Robert with the 6mmHot thought it would be a good idea as his reamer prints state 6X47Lapua and 6mmHot after that. he is going to leave his website named as it is though. The big thing between all of these is the final designation after the 6X47. if you say 6X47 to a benchrest shooter they would commonly refer to the 222 mag case necked up although the correct designation is the 6X47 Remington.

But as stated you can call the following names and it will help in the long run.
6X47 or 6X47 Remington,222Mag case up to 6mm)
6X47 SM or 6X47 Swiss Match
6X47 Lapua,6.5X47 Lapua case necked down to 6mm)

Also it was said if a 30 cal version was used and left in the original design it should be called the 30X47 Lapua

Cheers Bill
Australia

 

[KLENCHBLAIZE]

Just for the record the 6X47 Swiss Match,Ruag Munitions) necked-up to .25 and given an Ackley shoulder is called the “250 Klenchblaize”. Period!

I don’t care if Mr. Kiff's reamer selection chart calls it the “25X47SM Ackley” as this is not what is to be found stamped on my Redding custom die set nor is it engraved on the Nesika's action by the London Proof House. Yes, Redding did manage to fit 12 letters and 3 numerals around the die and a fine job they made of it!

Just thought this might be a helpful clarification!!!

Cheers

 

[bcott]

I am reading about the 6.5X47Lapua with both the large primer and large flash hole, and small primer and small flash hole. Some confusion here... Which is going to be the US version?

 

[Wild_Bill]

Some Pre production cases had large primer pockets but all commercial cases will have small primer pockets with small flash holes. The sizes were changed after testing as they felt the best performance cmae with the small primer combo.

Cheers Bill
Australia

 

[jadams]

Mr. 250 Klenchblaize:
There must be a misunderstanding here. If you contracted with Mr.Kiff to grind you a .25x47SM. reamer and you paid for it, it's yours. If you also requested Mr. Kiff to mark it as a .250 Klenchblaize that's O.K. too. Again it's your reamer you may call whatever you wish, you paid for it. Now as to the custom .25x47SM. die that you had Redding make for you and again you requested that they put your name on it, that's also O.K. too. If you paid for it, it's your privilege. I don't think anybody in the good old USA has any problem with that. Now that leaves us with your Nesika rifle that you had engraved with the same name.I think it's only right that you had them engrave it however you wished, again you paid for it and you may do with it whatever you please. I don't think it's a problem here. We are going to properly call it a .25x47SM, Again, You may call it whatever pleases you. not a problem. Heck, if I had my choice I think I would call it a .243x250SM. Maybe I might add IMP.
Now the real shame of this whole deal is that you based it on the RUAG 6X47SM brass. I have a Bench rest type rifle in 6x47SM.
It shoots pretty good, That's with a lite target load. I've also used the brass, sadly I have about 800 pcs. of it.)to reform to a .22x47 Lapua while I waited for the 6.5x47 Lapua brass to arrive. Boy, what a bunch of junk The RUAG brass is, with target load I guess it's O.K. BUT the minute you add a little pressure to it it goes to hell in a hand basket. IT's much to hard, it will not readily form to chambers, it has very little spring back after fireing and worst of all the primer pockets leak under any additional pressure at all. I think I would rate it right along with Mr, Tubbs #1 brass.
But all is not lost, just as soon as you can get some of the new 6.5x47 Lapua brass and reform it to your 250 Klenchblaize you will finally see what a good rifle, with maybe the best 250 sized brass we have ever had, will do.
Remember now, I don't care what you call your .25x47SM, it's yours.
John

 

[KLENCHBLAIZE]

Mr. 250 Klenchblaize:
There must be a misunderstanding here. If you contracted with Mr.Kiff to grind you a .25x47SM. reamer and you paid for it, it's yours. If you also requested Mr. Kiff to mark it as a .250 Klenchblaize that's O.K. too. Again it's your reamer you may call whatever you wish, you paid for it. Now as to the custom .25x47SM. die that you had Redding make for you and again you requested that they put your name on it, that's also O.K. too. If you paid for it, it's your privilege. I don't think anybody in the good old USA has any problem with that. Now that leaves us with your Nesika rifle that you had engraved with the same name.I think it's only right that you had them engrave it however you wished, again you paid for it and you may do with it whatever you please. I don't think it's a problem here. We are going to properly call it a .25x47SM, Again, You may call it whatever pleases you. not a problem. Heck, if I had my choice I think I would call it a .243x250SM. Maybe I might add IMP.
Now the real shame of this whole deal is that you based it on the RUAG 6X47SM brass. I have a Bench rest type rifle in 6x47SM.
It shoots pretty good, That's with a lite target load. I've also used the brass, sadly I have about 800 pcs. of it.)to reform to a .22x47 Lapua while I waited for the 6.5x47 Lapua brass to arrive. Boy, what a bunch of junk The RUAG brass is, with target load I guess it's O.K. BUT the minute you add a little pressure to it it goes to hell in a hand basket. IT's much to hard, it will not readily form to chambers, it has very little spring back after fireing and worst of all the primer pockets leak under any additional pressure at all. I think I would rate it right along with Mr, Tubbs #1 brass.
But all is not lost, just as soon as you can get some of the new 6.5x47 Lapua brass and reform it to your 250 Klenchblaize you will finally see what a good rifle, with maybe the best 250 sized brass we have ever had, will do.
Remember now, I don't care what you call your .25x47SM, it's yours.
John

Thank you for that clarification!

Hey, I like to believe I’m big on irony so be assured that most of old Klencher’s toys will stay firmly in the pram as I reflect upon my wholesale folly! One can always learn something new if one is prepared to listen and, here is the most important bit, able to sort the wheat from the chaff.

Now, having established where my project has fallen over,until now believing it was only in choosing a seriously over-hyped action that may yet need legal pronouncement to determine what constitutes the lawful use of the term “hunter/repeater”) I will not insult either you or Ruag by suggesting a rogue batch of brass is to blame because, frankly, this is about as likely as George W. Bush understanding the meaning of the term “exit strategy”.

In truth I have not run enough load development tests to speak with complete authority on how suitable or otherwise the composition,less than 63% copper content?) of Ruag’s case might be, but I most certainly have not encountered problems with producing a well defined Ackley shoulder after just two,2) firings; closing the bolt, as in cases requiring brutish force to chamber and made all the more difficult by my poor practice of neck sizing only, nor leaking gases from expanded primer pockets. But, as I say, I’ve only gone as far as placing a mere 39.5g of Varget behind a 85g .25 Berger before kicking it in the butt, whereas necking in the opposite direction is a handicap from the start in the pressure stakes and at complete odds with what I set out to achieve: Namely a cartridge that is a real “pussycat” to shoot and one that is in no danger of sending parts of the action past my bench-buddies ear!

I do though wish you every success with your 22X47 Lapua,Ruag SM) as it should be a real screamer although you may need a good supply of “Super Glue” to keep those primers in place – much like, I'm told, those chaps who insist on making a 243 out of a PPC.

Cheers


“250 Klenchblaize”

Ps: How about the “.250X47SM/RUAG/ACKLEY/KLENCHBLAIZE” as a compromise!!!

 

[Ratata]

Yes, it's a free world, one can name your own reamer whatever you want. My JGS reamer when used for BR case length it’s named BRV,V = Viktor, my son) and when used for 6,5x47Lapua case it’s named BRVx47.

For the moment I have two rifles,barrels) in .22 BRV and waiting for some spare time to get a barrel chambered end reloading dies done, in 6mm BRVx47.
6mm BRVx47 = alphabet soup, nooo...

S Smeds