6BR LOAD VS 6BRA

[johara1]

I had both at the same time , both 14 t tubes. For me the 6ppc was a little more accurate at 100, 200.

Don

Why stack the deck in your favor?? use a 12 twist barrel and 80 gr. bullets the br starts to come alive..... jim

 

[Area51]

I have been comparing posted loads for the 1/8 t , 105 bullet in the 6 br and 6bra and haven't found much difference . Or am I missing something? Does the advantage come from the 4o* shoulder ?
Don

Your not missing anything. The guys seeing the big delta are typically using the wrong powder in the 6BR, as a comparison, the new 6BR(BE) when correctly loaded is being called the 6BR-BE, pronounced 6-burbee, (the 6 BR bra eater,) 30" bbl, 105g burgers, 3000fps, all day, every day at least here in earth quake, fire and indigent illegal aliens country. Works exceptionally well in F and long bench where the longer bbls are used. all the short barrel events, the 6.5x47 with a 130ish bullet is probably better.
Some of the fellows i talk to just cant seem to get the same results in certain parts of the county, who knows what the real root causes are, there are many variables rifle and chamber to chamber design, regional atmospherics.
The BRA thing is a current poster child made famous on the internet by a few famous shooters that would and have done well with any of the equivalent cartridge designs. I-net marketing at its best. Arguably the chamber design for a 6BR to really shine and perform does need to be correct. In my case it took a bit to get the design right and of course is proprietary except for a few, but its worth your time and energy to pursue the reamer designs not the morphed case designs.
Or not.
Enough of a break and time wasting exercise, i need to go finish clambering another 6 burbee.

Blinded by the light,,,,,,,

 

[Alex Wheeler]

There are many BRA/BRAI reamer prints available to the public free of charge and they are being chambered all over the world. The burbee is proprietary to you, so I guess the only way to get one is to pay you? Internet marketing?

 

[Puzzaz01]

There are many BRA/BRAI reamer prints available to the public free of charge and they are being chambered all over the world. The burbee is proprietary to you, so I guess the only way to get one is to pay you? Internet marketing?

That's Sad!

Darrin

 

[KenOath]

Your not missing anything. The guys seeing the big delta are typically using the wrong powder in the 6BR, as a comparison, the new 6BR(BE) when correctly loaded is being called the 6BR-BE, pronounced 6-burbee, (the 6 BR bra eater,) 30" bbl, 105g burgers, 3000fps, all day, every day at least here in earth quake, fire and indigent illegal aliens country. Works exceptionally well in F and long bench where the longer bbls are used. all the short barrel events, the 6.5x47 with a 130ish bullet is probably better.
Some of the fellows i talk to just cant seem to get the same results in certain parts of the county, who knows what the real root causes are, there are many variables rifle and chamber to chamber design, regional atmospherics.
The BRA thing is a current poster child made famous on the internet by a few famous shooters that would and have done well with any of the equivalent cartridge designs. I-net marketing at its best. Arguably the chamber design for a 6BR to really shine and perform does need to be correct. In my case it took a bit to get the design right and of course is proprietary except for a few, but its worth your time and energy to pursue the reamer designs not the morphed case designs.
Or not.
Enough of a break and time wasting exercise, i need to go finish clambering another 6 burbee.

Blinded by the light,,,,,,,

Burbee??

 

[Area51]

There are many BRA/BRAI reamer prints available to the public free of charge and they are being chambered all over the world. The burbee is proprietary to you, so I guess the only way to get one is to pay you? Internet marketing?

Oh gosh.not at all, i give my prints to hobbyist machinists like me all the time. /rarely do i give the drawings to end users unless i know them from the range and can help them get to the desired results, i dont like releasing things lime this to the general public, i dont owe the general public anything. This is a very expensive hobby, all things considered, lets not even talk about the machine shop.
Its all about getting the throat right vs the bullet one plans to use. And of course being able to evaluate the commonly available power information, its really a no brainer. It amazes how so many just never get this.

 

[Area51]

Burbee??

The 6BRBE, pronounced "burbee", mate.

 

[Alex Wheeler]

If its based on the br case and does whats claimed whats not to like? I hope it truely is the BRA eater. If it will out group the BRA and out run it with similar powders and barrels it will catch on like wild fire. Records are meant to be broken!

 

[6BRAckley]

Gary

What is the next BR match you will be at with your rifle? I’ll do my best to show up and see how it shoots.

JP

The 6BRBE, pronounced "burbee", mate.

 

[Area51]

Gary

What is the next BR match you will be at with your rifle? I’ll do my best to show up and see how it shoots.

JP

Both bench rifles are shooting very well, both new good bbls, thats 90% of the equation.
At this time i am shooting 2-3 F class matches per moth at least, so i have not been shooting bench for a good few months now, miss it, but not enough to give up the F class matches, getting ready for march madness. The 600yd matches are pretty low interest for me, so that leaves the every other month 1Ks, maybe.

 

[6BRAckley]

I'll try to make the next 1000 yard match in Sacramento.

I disagree with you a little bit about barrels being "90 percent equation." Even if you are right, what happens in that other 10% can have a significant impact on the outcome of a match. I'm learning more and more that longrange benchrest is a game of inches (not literally) and finding every small way to make gains is worth it. If I thought the BRA had a 2% advantage over the dasher then I would make that change in heartbeat.

I'd be happy to try any new cartridge design. I enjoy experimenting in benchrest but also can't help to realize when several prominent shooters in the sport are experiencing CONSISTENTLY better results with a new cartridge. Lots of records have fallen in the last year and I don't think it can easily be chalked up to "a good run of new barrels." I'm looking forward to discussing it more with you in person at the next match we shoot together.

JP

 

[Area51]

I'll try to make the next 1000 yard match in Sacramento.

I disagree with you a little bit about barrels being "90 percent equation." Even if you are right, what happens in that other 10% can have a significant impact on the outcome of a match. I'm learning more and more that longrange benchrest is a game of inches (not literally) and finding every small way to make gains is worth it. If I thought the BRA had a 2% advantage over the dasher then I would make that change in heartbeat.

I'd be happy to try any new cartridge design. I enjoy experimenting in benchrest but also can't help to realize when several prominent shooters in the sport are experiencing CONSISTENTLY better results with a new cartridge. Lots of records have fallen in the last year and I don't think it can easily be chalked up to "a good run of new barrels." I'm looking forward to discussing it more with you in person at the next match we shoot together.

JP

Ask about the bullets they are using, big change there 2 years ago, big change. Bullets and barrels, the rest is much less important all things being equal.

 

[6BRAckley]

So what do you think the big change in bullets is? Tom E and Bart get some better lots of jackets? People have been shooting great bullets from Vapor Trail for years (new die and old die made good bullets). What explains the number of records broken recently?

In the past you have told me that primers didn’t matter and you could mix multiple different types and brands...even in a single group you were shooting without it being detrimental. You assured me you had done the tests to confirm that. I respect your desire to confirm things with tests. What testing have you done with 6BRA? Accuracy does not necessarily correlate with higher velocity. The reason I entered this conversation is because I wanted to SEE THE DATA for the accuracy you can achieve with the souped up regular BR or your variant of it. Guys have made BRAs go 3200 but to my knowledge they all back it down to something much lower to get consistent accuracy.

JP

 

[Northridge]

6BRA eater? I want one Lol...

Shawn Williams

 

[SamLS]

Well, I would hope Someone with a name like Area 51 would come out with something like the 6mm PD (panty dropper). Lol who wants a bra eater.

How much velocity gain from 6mmbr to 6mm bra can you expect. I suspect it's well within the velocity variation of barrel to barrel.

 

[urbanrifleman]

6mm Don Julio.

The original panty dropper.

 

[Area51]

So what do you think the big change in bullets is? Tom E and Bart get some better lots of jackets? People have been shooting great bullets from Vapor Trail for years (new die and old die made good bullets). What explains the number of records broken recently?

In the past you have told me that primers didn’t matter and you could mix multiple different types and brands...even in a single group you were shooting without it being detrimental. You assured me you had done the tests to confirm that. I respect your desire to confirm things with tests. What testing have you done with 6BRA? Accuracy does not necessarily correlate with higher velocity. The reason I entered this conversation is because I wanted to SEE THE DATA for the accuracy you can achieve with the souped up regular BR or your variant of it. Guys have made BRAs go 3200 but to my knowledge they all back it down to something much lower to get consistent accuracy.

JP

Agree on all points.
If i am otherwise engaged, ask Louie, Dale, Mikey, Jeff, a host of others you are shooting with at SVSC how my 6BRBE's shoot.

 

[Area51]

I cant compete with the little BRBE if guys are going up to 3200 with the BRAs, could not get that with a Dasher, so i have my doubts, and not seeing any pressure of significance,
The bullets i shoot start opening up group wise, above 3050. 3000-3010 has been working stellar out of the 6BRBE for some time.
A good new bbl. off to the races, bbls are on the downhill side of the life curve at 500-600 rounds vs shooting against a good shooter with a good new bbl.
Enuf for now.

 

[mikeeg02]

I guess I am an odd duckling then.

6BR-improved. My reamer, this was at 50*, won for group and finally hit the chronograph. Two of the cases primer pockets leaked a little and made the ES just a little more then it should have. Cases were numbered and I verified. Barrel was at ~1200 rounds at this point in its life. This was the match that followed the small group. 16 or so firings on that poor brass at that time.

When it was 75* same load shot that 3"er. 10 shot record just as this record was. Its not 3,200. but I wasnt even trying for speed. Just picked a group from a target I shot this spring that looked decent and then I tested it at a few matches.

EDIT: Maybe next year Ill figure this it out earlier in the barrels life, and before the end of the season lol

 

[SamLS]

Volume difference between 6mmbr Norma and 6mmbra is about .76 grains of water. Estimated from difference in chamber volume. So not much it's about .5 grns more of rl 15 or varget in the case. Depending on pressure about 15 fps with 105 107 bullets.