Any testing with the 6BR 40deg shoulder?

[Eric Leonard]

I may have to try the 6BR 40*,,it seems everybody is getting top results with it,,

 

[swd]

I already have straight 6BR, 2 BRX's and a Dasher. Just when I thought I was done bulding myself rifles..... Thanks....

 

[Gabe22BR]

These were 103.5

I'll take those 103.625's. ...

 

[Alex Wheeler]

Have 10 Kreiger HV 237 31" 8 twists in the mail if anyone is wanting to try a 6brai

 

[JamesnTN]

View attachment 1002135

View attachment 1002136

View attachment 1002137

Each 3 are the same "test". The results are usually tight so I double up to have more concrete data. Looks like the blue was best on vertical both times.

Tom

Tom,

It definitely looks like the BR AI will hang with the dasher. I'm not sure what your brass life will be at those velocities, it'll be interesting to know though.
Can you give details on what loads were used for the targets during today's test?

Thanks for the updates.

 

[JamesnTN]

James,

I just took 31.1 from last week's results. Wall these were just off the lands and 31.1 on fireformed only brass. H4895/400's/103 vapor trail.....AS ALWAYS LOL!

Tom

Thanks, that looked like it was a really nice node based on your last test and today proved so as well. Good luck and let us know what your case life will be if you would. I'm not sure who's reamer design you went with but I know on mine when I got up in that velocity range my extractor grooves swelled to the point the cases wouldn't fit into my shell holders any longer.

 

[fultonbig9]

I'll post more later when I get home. The br Ackley will for sure hang with the best dashers all the way to 1000! I shot 9 5 shot targets today while testing some "stuff". 1 went 4.5, but the biggest in the other 8 was 3.7. I'll make more sense of it all when I get back to town.

Tom

Yes, they sure will hang in there. Joey

 

[Cool Tool]

I'm on Alex's reamer .4714, I will keep an eye on it. I got a fresh dasher barrel that ain't no slouch either lol.

Tom

Great info tom I will test mine but I am limited to 300 yds o I will fill you guys in thanks again tom.

 

[josh shrum]

Has anyone tried N135 with this cartridge? I am having a barrel(s) fit for this and want to have a few different powders to work with. Currently have Reloder 15 and 4895 on the list.

 

[Alex Wheeler]

FYI,
I have been told that Harrells has no problem taking .080" off their dasher dies for the 6brai. I have been recommending the D2.5 or D3 for my reamer.

 

[Mulligan]

FYI,
I have been told that Harrells has no problem taking .080" off their dasher dies for the 6brai. I have been recommending the D2.5 or D3 for my reamer.

Alex, what does D2.5 or D3 refer to?
CW

 

[Alex Wheeler]

D is for dasher, and the number is the size. #4 being the smallest die.

 

[Mulligan]

D is for dasher, and the number is the size. #4 being the smallest die.

Thank you, I had no idea you could get different sizes of dasher dies.
So much to learn.
CW

 

[johara1]

just tested with Barts 103 and 31.1 gr. of H4895 with a 205 fed primer gave 2970 average from a 26" Kreiger .010 in seem to shoot the best. Both groups were well in the zeros @ 100 yds...... jim

 

[johara1]

Tom, i need to get some round through it, so the velocity will stabilize. It shot an .069 today so All in all it is a good 600 round any how. ..... jim

 

[22DASHER]

My reamer has been ordered...Can't wait to give it a try!

 

[JamesnTN]

Has anyone tried 8208 in one yet?

Tom

We're waiting on you to do all the testing.

 

[tclaunch]

Has anyone tried 8208 in one yet?

Tom

We have a shooter here likes it so much, he may be using it on his cereal.....lol. Shoots .237" That leaves me out for the most part.

 

[Cool Tool]

We have a shooter here likes it so much, he may be using it on his cereal.....lol. Shoots .237" That leaves me out for the most part.

Well if weather prevails I will test 8208 tomorrow evening but limited to 300yds

 

[TZaun]

For you guys that test like this, when you start with a new barrel, and it speeds up after a while, do you find that it's only the velocity that you need to maintain to stay in tune? Or are you constantly tuning as time goes by?