6XC, IMR 4350 w/DTAC 115gr 6mm bullets load data?

[shootist]

Hey all looking to find some load data using IMR 4350 in the 6XC
Using 115gr DTAC bullets.

Thanks

 

[rcol317]

I'm surprised no one's tried IMR 4350, maybe not quite slow enough, seen several guys use it with 105's, seem to favor H-4350. I'm getting ready to try H4831SC with the 115's and H-1000

 

[Bob3700]

You are best with the H4831sc for the 115 DTACs in an XC. You will get the best speed with accuracy. One problem. Getting those DTACs up to the speed you want will cost you brass!

Speed costs money, how fast do you want to go? Primer pockets will be the price.

The XC just is not a large enough case to shoot the DTACS to higher velocities without taking brass life with it. Shot it for several years and went to the 243 SLR.

The SLR will give you speed, accuracy and the brass will last a long time cause you are not pushing the case up against the governor like the XC

You would be better off with the 105 Berger Hybrids.

Just my .02.

Bob

 

[WyleWD]

You are best with the H4831sc for the 115 DTACs in an XC. You will get the best speed with accuracy. One problem. Getting those DTACs up to the speed you want will cost you brass!

Speed costs money, how fast do you want to go? Primer pockets will be the price.

The XC just is not a large enough case to shoot the DTACS to higher velocities without taking brass life with it. Shot it for several years and went to the 243 SLR.

The SLR will give you speed, accuracy and the brass will last a long time cause you are not pushing the case up against the governor like the XC

You would be better off with the 105 Berger Hybrids.

Just my .02.

Bob

Do you have and shoot a 6xc?? WD

 

[Bob3700]

Yes! Had a bolt gun for mid range and long range NRA prone competition and built an AR10 to fire the cartridge and competed XC.

Have competed out to 1K in NRA prone matches and hold a High Master classification XC with service rifle, match rifle, and also in Mid Range and Long Range. Distinguished Rifleman #1740 and President's one hundred. Not that you need that sort of qualification to comment, just saying that I have many thousands of rounds down expensive tubes to back up what I said.

If I loaded the XC with 115 DTACs (my favorite bullet by the way) and worked at 3050 fps velocities, the primer pockets on Winchester or Remington (22/250 parent case) lasted 3 to 4 firings. This was with bbl lengths of 28-30 inches. You might have better results using the new Lapua 22/250 brass. Gave up on the cartridge for LR shooting before that stuff came out.

Round shoots well, accuracy is very good, brass life was just unacceptable. You work too hard to get good brass to the point where you are satisfied it is the best it can be. Then wam! you are having to prep new stuff cause the primers are falling out of the pockets.

The SLR is by far the better cartridge to shoot 115 DTAC bullets fast. The XC is at its best with 105-107 gr bullets. There it is hard to beat.

That is my experience. You mileage may vary. That was just mine.

Bob

 

[WyleWD]

Yes! Had a bolt gun for mid range and long range NRA prone competition and built an AR10 to fire the cartridge and competed XC.

The XC is at its best with 105-107 gr bullets. There it is hard to beat.

That is my experience. You mileage may vary. That was just mine.

Bob

Thanks for the response.... That is what I suspected that the 105-108gr. Was surprised to hear of the poor life on the primer pockets though as I have some brass that has had dozens of firings on it and primer pockets are still very functional and the brass competitive..... Although I am shooting lighter bullets (95gr). WD

 

[rcol317]

Very interesting. I shoot 115 VLD's in my 6 XC with H 4350 but I only shoot them for deer hunting. Getting right @ 3000 with a 26" barrel but have not shot enough rounds to see brass go. I haven't shot the 115 DTAC's wanted to shoot them in my 6mm AI.

 

[Bob3700]

Your 6mm Rem AI has a lot of boiler room to get a lot of velocity. Just remember that long bullets and high pressures and heat spell death to barrel throats.

So if you are just using them for hunting, that is not an issue. Give that bbl a steady diet of those high velocity, heavy bullets and you will see the throat wear at a rapid rate.

Bob

 

[racesnake]

I'm running 115Dtac's @ 3030fps using h4831sc and 6xc brass (Norma) and have 5 reloads on them. Pockets have loosened a bit but not to the point where they are falling out or leaking. I'm guessing I'll get at least 10 reloads before I'll have problems,

 

[Bob3700]

H4831sc is your best bet for the DTACs.

When my primer pockets starting getting loose, I started to see the effect on my bolt face. Some gas cutting was taking place. Not exactly what I was looking for on my custom action.

The 6XC will get those 115's up a bit past 3000fps, but the SLR does it effortlessly.
The only time I was using DTACs was for 600 and 1000 yard lines.

Norma brass gave me fitment problems. By that I mean the head of the case was slightly larger in diameter than the Winchester brass I had formed my other cases from. The reamer was just a 1/2 to 3/4 thou smaller than the Norma brass. It gave me bolt clicks at extraction. I had to stop using it. Good brass, just didn't fit my chamber, it was too big at the base.

For 600 yd shooting and 1K in low wind conditions, I went to the 6mm BRX. Longer bbl life, less powder to get the same velocities as the XC and very accurate. It is almost impossible to beat the little BR case at 600 yds. For 1K shooting, the BRX and Dasher will impress you. If conditions allow, they will shoot dots. If the wind is really blowing, they will suffer, but just about everything else suffers too, just not as much. There are no magic bullets.

Bob

 

[jaygorski]

Yes! Had a bolt gun for mid range and long range NRA prone competition and built an AR10 to fire the cartridge and competed XC.

Have competed out to 1K in NRA prone matches and hold a High Master classification XC with service rifle, match rifle, and also in Mid Range and Long Range. Distinguished Rifleman #1740 and President's one hundred. Not that you need that sort of qualification to comment, just saying that I have many thousands of rounds down expensive tubes to back up what I said.

If I loaded the XC with 115 DTACs (my favorite bullet by the way) and worked at 3050 fps velocities, the primer pockets on Winchester or Remington (22/250 parent case) lasted 3 to 4 firings. This was with bbl lengths of 28-30 inches. You might have better results using the new Lapua 22/250 brass. Gave up on the cartridge for LR shooting before that stuff came out.

Round shoots well, accuracy is very good, brass life was just unacceptable. You work too hard to get good brass to the point where you are satisfied it is the best it can be. Then wam! you are having to prep new stuff cause the primers are falling out of the pockets.

The SLR is by far the better cartridge to shoot 115 DTAC bullets fast. The XC is at its best with 105-107 gr bullets. There it is hard to beat.

That is my experience. You mileage may vary. That was just mine.

Bob

My experience with the DTAC is in my 6 Creedmoor, 41.7grs Hybrid 100V with push a BN coated DTAC in the 3050ish range and I don't have to deal with high pressure in the 28" bbl. I can push that bullet past 3100 and still not have high pressure but ES & SDs suffer a bit.