6MM Prairie dog gun

[AckleymanII]

Dang, that 6 XC with Tubb's brass with an 80g Sierra will be exceptional to say the least!

 

[urbanrifleman]

Dang, that 6 XC with Tubb's brass with an 80g Sierra will be exceptional to say the least!

I think I like the 85 even better. Huge WAP hits and I had a chance to test a lot of the bullets at Tubbs ranch. The 85 was wayyyyy more consistent at distance. I shot a golf ball sized group at 600.

I made sure we checked the damage on the pdogs so we drove the Polaris to look at the damage and I had several that were basically blown in half.

 

[B23]

I have prairie dog guns in 20 and 22 caliber and would like to play with a 6MM. I would like something that uses a little less powder than a 243 Win so the barrel life would be better.

Lots of great choices out there but if I was looking for something with a little less case capacity than a 243Win I'd build a 6x47 Lapua.

Most people run new brass through some kind of die to make the necks round and set neck tension so there would be no extra brass prep to make a 6x47 and it's an easy peasy straight neck down from the 6.5x47 Lapua.

 

[Tucker65]

Lots of great choices out there but if I was looking for something with a little less case capacity than a 243Win I'd build a 6x47 Lapua.

Most people run new brass through some kind of die to make the necks round and set neck tension so there would be no extra brass prep to make a 6x47 and it's an easy peasy straight neck down from the 6.5x47 Lapua.

I agree with this. I have a 6x47 with a fast twist barrel set up to shoot 105 Berger's. It shoots extremely well and I've shot it out to 1400 yards with consistent shots on gongs at that range. It's shooting the 105 Berger VLD's at 3050 fps. Thought I would try some 70gr. Sierra Blitzkings in it one day to see if they would stay together in the 7-1/2 twist barrel and they all made it to the target and piled up into a nice little clover leaf size hole. I've shot a few critters with them and the Blitzkings at 3700 fps. are devastating on them. Brass prep is super easy by just necking down 6.5x47 brass or Peterson Brass has 6x47 brass right out of the box with reports of it being as good or better than Lapua brass. I liked the results of the cartridge so much I built my wife a lightweight deer rifle to shoot those Berger 105's and it's a shooter also.

John

 

[urbanrifleman]

I agree with this. I have a 6x47 with a fast twist barrel set up to shoot 105 Berger's. It shoots extremely well and I've shot it out to 1400 yards with consistent shots on gongs at that range. It's shooting the 105 Berger VLD's at 3050 fps. Thought I would try some 70gr. Sierra Blitzkings in it one day to see if they would stay together in the 7-1/2 twist barrel and they all made it to the target and piled up into a nice little clover leaf size hole. I've shot a few critters with them and the Blitzkings at 3700 fps. are devastating on them. Brass prep is super easy by just necking down 6.5x47 brass or Peterson Brass has 6x47 brass right out of the box with reports of it being as good or better than Lapua brass. I liked the results of the cartridge so much I built my wife a lightweight deer rifle to shoot those Berger 105's and it's a shooter also.

John

The 6x47 and the 6xc are only like 1mm difference at the shoulder. Other than that, they are basically identical now that Tubb has small rifle primer brass. Just for reference.

 

[urbanrifleman]

I mean come on...

Luccccyyyyyyy you got some splaining to do!!!

That is why I am promoting and selling the 6XC. Might as well go with the original.

 

[F224]

Dang, that 6 XC with Tubb's brass with an 80g Sierra will be exceptional to say the least!

That is what I'm running in a 20" custom Blaser R93 barrel at 3300fps. It's a death ray on coyotes, fox, Iowa Woodchucks, and prairie dogs.

 

[urbanrifleman]

That is what I'm running in a 20" custom Blaser R93 barrel at 3300fps. It's a death ray on coyotes, fox, Iowa Woodchucks, and prairie dogs.

That is a great bullet. Lots of fun

 

[drover]

OP - Take a look at the link, availability of brass, amount of powder burned, fire-forming, etc should be factored into your decision. IMO the 6 BR is the ultimate 6mm cartridge for PD shooting, it is very accurate, has low recoil and brass is readily available without a lot of fuss and expense.

There is a lot of good info here concerning some of the recommended cartridges.

https://precisionrifleblog.com/2019/09/14/6bra-6brx-6br-load-data/

drover

 

[urbanrifleman]

OP - Take a look at the link, availability of brass, amount of powder burned, fire-forming, etc should be factored into your decision. IMO the 6 BR is the ultimate 6mm cartridge for PD shooting, it is very accurate, has low recoil and brass is readily available without a lot of fuss and expense.

There is a lot of good info here concerning some of the recommended cartridges.

https://precisionrifleblog.com/2019/09/14/6bra-6brx-6br-load-data/

drover

The only problem with 6br is that it works best out of a single shot. Shooting from a repeater can be more difficult.

 

[drover]

If one is shooting a Rem 700 it is an easy fix to make one feed, I have done this and it works just fine. I had a Win 70 push-feed that I did a similar mod on it worked fine. Also I had a factory built Sako sporter in 22BR and feeding was never a problem with it.
https://www.accurateshooter.com/technical-articles/gunsmithing/converting-rem-700-magazine-for-6br/

drover

 

[pre64win]

I think for what I want to do a standard 6 BR be a good fit.

 

[searcher]

I could never get the 87V Max's to shoot well,

I also have two 1-8" twist Krieger tubes that won't shoot the 87 V-Max. And that is an understatement. But with the 75 V-Max, it is a gnat slayer.

 

[Knifeman]

6mmDTI made by Dtech. It’s a 6.8spc necked Down to a 6mm. 3500fps 55gr’s and 65gr at 3300 fps. Outstanding Caliber. He sells the dies child’s play to reload.

 

[Hohn]

I mean come on...

Luccccyyyyyyy you got some splaining to do!!!View attachment 1201125

That is why I am promoting and selling the 6XC. Might as well go with the original.

I suppose. But we’ve now “split the difference “ so much in 6mm that the argument for choosing any of them over its nearest neighbors is very weak. We’re talking sub-sub niches now. The tiebreakers aren’t going to be ballistic performance in most cases.

6xc wasn’t intended to run 200-300 rounds as fast as a dog rifle might run. I think you want less powder in a dog gun. Hence the smaller 6br .

But if you need or want a repeater, I’d suggest the smallest 6mm that feeds well. 6gt/6creed/6xc/ etc.

I’d personally use the br in a single shot.

 

[urbanrifleman]

I suppose. But we’ve now “split the difference “ so much in 6mm that the argument for choosing any of them over its nearest neighbors is very weak. We’re talking sub-sub niches now. The tiebreakers aren’t going to be ballistic performance in most cases.

6xc wasn’t intended to run 200-300 rounds as fast as a dog rifle might run. I think you want less powder in a dog gun. Hence the smaller 6br .

But if you need or want a repeater, I’d suggest the smallest 6mm that feeds well. 6gt/6creed/6xc/ etc.

I’d personally use the br in a single shot.

I agree. 6xc for repeater. 6bra for single feed. I like the 6bra better than 6br but both are great.

Run R23 in 6xc to keep the barrel cool. There are lots of tricks to use a larger case and reduce the flame temp. The idea that you need exactly the right sized case I think is greatly overblown. So, load the 6xc to Dasher velocity and it's a Dasher with a cool burning bulky powder and you can get great results. It's the powder and flame that burns up the barrel.

I mean 6xc is a 22-250 with the shoulder set back. Lots of varmints met their death with the 22-250.

 

[centershot]

6mm TCU. .223 brass, 28 grains of powder to achieve 3,000 fps with a 80 grain Nosler. 9 twist. Barrel life should be pretty good.

 

[Hohn]

I agree. 6xc for repeater. 6bra for single feed. I like the 6bra better than 6br but both are great.

Run R23 in 6xc to keep the barrel cool. There are lots of tricks to use a larger case and reduce the flame temp. The idea that you need exactly the right sized case I think is greatly overblown. So, load the 6xc to Dasher velocity and it's a Dasher with a cool burning bulky powder and you can get great results. It's the powder and flame that burns up the barrel.

I mean 6xc is a 22-250 with the shoulder set back. Lots of varmints met their death with the 22-250.

I’m taking a similar approach loading RL26 in 6.5 cm and less pressure to hit 2800 with a 140gr in a 26”.

Supposedly RL26 delays heat release a bit later on the pressure curve, which part of the rocket fuel speed it can hit.

I can get there just as easily with RL16, but pressure with 26 is less and I think the fuller case helps burn consistency.