6 x 45

[nashlaw]

Hello, gents.
I am getting an itch for a 6x45 to shoot in some local BR matches. Would love to hear from some actual 6x45 users concerning load data, terminal results, and any information you think I might find helpfu.

Thank you all.

 

[ireload2]

There is load data in some manuals. Back in the 70s and 80s both it and the 6X47 Remington were used in short range bench rest.
The 6X47 was kind of the top dog until the 6PPC took over.
My rifle is the 6X47. The shoulder is about .030 further forward with the 6X47 version and has the longer neck that comes with the .222 Magnum case so there is not much difference in case capacity. My rifle is a 40XBR and has a 20" heavy barrel with 1 turn in 14".
I once shot a few Winchester 85 grain flat base match bullets with real long pointy ogives for the day. None hit the target because the twist was too slow. However it will shoot 70 gr Ballistic Tips and 75 grain hollow points really well. It is really good with the cheap 70 grain Hornady Super Explosive varmint bullets too.
The neck is short so if you want to shoot something long and heavy you need a long throat magazine (unless you are shooting a single shot) or you will be stuffing a lot of bullet shank into the case past the short dinky neck.

A one turn in 12" might be a good compromise unless you are going to blow up prairie dogs and crows.

 

[Ggmac]

6x47 was a diff beast , it was made on 22-250 brass , developed by Mike Walker , and offered in the 40 x , the 3 others , 6x 222- 6x222 mag and 6 TCU were all about the same time . I shot both 6x47 ( 22-250) and 6x 222 and 6 tcu . The 6 tcu wins hands down in accuracy and easy load development .

Sorry , brain fart . It is the 6 mm international (6-22-250) and the other 3 are based on the 222, 222 mag , 223 .

 

[redrockranger]

???

My Hornady Handbook of cartridge reloading 3rd edition states the 6 x 47 is a wildcat that is nothing more than the 222 magnum necked up to 6mm.

 

[ireload2]

The 6mm Remington International was a 6mmX250 with a long neck formed by pushing the shoulder back.

 

[SDWhirlwind]

6x47 was a diff beast , it was made on 22-250 brass , developed by Mike Walker , and offered in the 40 x , the 3 others , 6x 222- 6x222 mag and 6 TCU were all about the same time . I shot both 6x47 ( 22-250) and 6x 222 and 6 tcu . The 6 tcu wins hands down in accuracy and easy load development .

Not quite! The 'first' 6x47 was based on the 222 magnum case, NOT the 22-250! My memory tain't so good nowdays but IIRC Mike Walker was the gent who designed the 222 Remington? The 6TCU came about when the handgun silhouette craze began which was much later than the 6-222. TCU= Thompson Center-Ugalde but I cannot remember Mr Ugalde's first name. The 6-222 mag IS the older case design and known as the first 6x47.

The later 6x47 was designed from the 6.5x47 Lapua round and has a small primer. Designed by Lapua or at least in Europe. The 6XC is based off the 22/250 case and was designed by Mr David Tubb!

 

[Cold Bore]

6x47 was a diff beast , it was made on 22-250 brass , developed by Mike Walker....

... I shot both 6x47 ( 22-250)....

Huh?

There are two "6x47" cartridges out there.

The 6x47 Lapua is based on the 6.5x47 Lapua parent case (and been online for about the past ten years or so), and the smaller "original" 6x47 is simply the 222 Rem Mag case necked up to 6mm.

Neither is based on the 22-250, nor was Mike Walker involved.

 

[Riesel]

Hello, gents.
I am getting an itch for a 6x45 to shoot in some local BR matches. Would love to hear from some actual 6x45 users concerning load data, terminal results, and any information you think I might find helpfu.

Thank you all.

I'm a bit confused, I thought this thread was about the 6 x 45 (.223 necked up?)

 

[dsandfort]

Me too...just a plain old 6mm/223, right? I shoot one and 70 gr Blitzkings with H322 work very well. I have not tried any VLD-types but the Sierra's shoot pretty small groups.

 

[savagedasher]

I think it would be the cartridge of choice for hunting for youth. Larry

 

[swd]

I'm a bit confused, I thought this thread was about the 6 x 45 (.223 necked up?)

Yea that's what I was thinking too.
I have owned 2 6x45's. I suppose you could use it for a local bench rest gun but the PPC's will eat it. I have one with a 10 twist that is a great predator and small deer rifle. The other is an 8 twist and with 95 SMK's in the mid 2800 range it's a lot of fun to play with out to 600-700 yards. Most any 223 powder works well in them. They are very mild to shoot with very little muzzle blast. It's a fun little cartridge that will put a smile on your face.

 

[Baddog0302]

Not quite! The 'first' 6x47 was based on the 222 magnum case, NOT the 22-250! My memory tain't so good nowdays but IIRC Mike Walker was the gent who designed the 222 Remington? The 6TCU came about when the handgun silhouette craze began which was much later than the 6-222. TCU= Thompson Center-Ugalde but I cannot remember Mr Ugalde's first name. The 6-222 mag IS the older case design and known as the first 6x47.

The later 6x47 was designed from the 6.5x47 Lapua round and has a small primer. Designed by Lapua or at least in Europe. The 6XC is based off the 22/250 case and was designed by Mr David Tubb!

I cannot remember Mr Ugalde's first name.Wes was Mr. Ugalde's first name.

Hotnady's 4th edition has 6 TCU data. ALL TCU aka Thompson Center Ugalde cases have a 40* shoulder, where as the 6 x 223 aka 6x45 and the 6x47 [222 Rem.Mag.] maintain the 23* shoulder angle

 

[Ggmac]

Mike walker designed the 6 mm international on the 22-250 case . It went by a few names , . Sorry for the confusion .
My memory is not like it use to be , I had to go and check my reamers , I would have bet $ that the 6/22-250 ( international ) was also called the 6x47 ( not the 6x47 , 222 mag case one ) . I was sure there were 3 dif 6 x47 s .
Not to mention the 6 NMC.
Again I'm sorry !
Gary

 

[BoilerUP]

Yea that's what I was thinking too.
I have owned 2 6x45's. I suppose you could use it for a local bench rest gun but the PPC's will eat it. I have one with a 10 twist that is a great predator and small deer rifle. The other is an 8 twist and with 95 SMK's in the mid 2800 range it's a lot of fun to play with out to 600-700 yards. Most any 223 powder works well in them. They are very mild to shoot with very little muzzle blast. It's a fun little cartridge that will put a smile on your face.

What's your barrel length and freebore on the 1:8 twist?

I've been considering a 18" 1:8 6x45 for a suppressed recreational/hunting rifle...have been led to believe it could get 105/107ss to 2500fps with 8208XBR but a 95gr wouldn't eat case capacity as much, especially with the 0.050" SAAMI freebore.

 

[Tim Singleton]

You can get to 2500 with 8208xbr or Varget with the 95s
Not sure you can with an 18" barrel.
I have with my24"

 

[swd]

26" with about .060" free bore. I have a lot of 107 SMK's but never did try any. I think the 95 SMK with a BC of .495 is the best compromise of speed vs BC. If you only wanted to shoot 95's you could probably go .080"-090" free bore. The 107's would need more like .125" and optimized for them would be more like .140" but then you would be stuck with bullets that I think are too heavy for the capicity.
I haven't tried 8208. I get excellent accuracy and decent speed with H4895. CFE223 gave me about 125 FPS more but accuracy suffered. Varget never got any speed but Hodgon Ball C 2 is worth a hard look. I understand the short barrel for a suppressor but I think it will severely affect MV too much, maybe even for the 95's.

You might pm 5 Speed, he has lots of time behind 6x45's and I think most of his guns are shorter than mine.