Any reason not to go 6BR?

[Bodhisafa]

My 243AI is a 7.5 Twist and it shoots the 115 DTACs lights out with 48.4 gr. of VV-N165.

What velocities you getting? Barrel life?

 

[Falfan2017]

Only time I think you’d feel a bit under gunned is a competitive f class match on a windy day. Outside of that there’s very little the 6br can’t excel at. I’d stick to the 103-108 class bullet and go for accuracy in your load development not top speed

 

[Bill Norris]

What velocities you getting? Barrel life?

3135 FPS Dont know about barrel life yet.

 

[Tangent]

swd,
Just a thought on the accuracy of rifles shot with a sling. I will bet u that u would be surprised at the level of accuracy of D Tubbs rifles n loads. He doesn’t go to a match with “ That’s good enough” equipment.
Look at the X-counts of some of these sling shooters. 16-18 Xs on a sling target ( a small group) would score above 3/4 of the F-class at a match. Just because someone shoots from a sling at a larger target does not mean their rifle is not capable of shooting small.
As far as the 115 class of 6mm bullets go, Those DTACs shoot small from a 7.5 T bbl. but u can’t drive them as fast as a 105-107. I am talking a 243 class case here. But if I am shooting in the wind, their BC and small groups will give the 105-107s something to shoot for. The only 6mm bullet I have not had good results with is the 110 SMK.

Yes, the wind is what I'm trying to beat. The range I shoot mainly on is located in a small L-shaped valley. The targets sit at the elbow of the valley. Shooting there yesterday with my .308 sometimes the wind flags were all pointing in different directions at the same time! We did win but I was some way behind my team mates shooting 6BR and .284Win. At 500m on the 300m TR target(3.3" V) we were using you could easily go from a V to a 3 if you misjudged it. The only solution I found was to wait for the wind to drop and shot quickly. Somehow I managed 10/15 V's. Unfortunately at 400m the wind never dropped!
So any increased performance in the wind would save me points. I seemed to have quite a few just the wrong side of the line

 

[Bc'z]

that's exactly what you should be doing. why buy a Porsche if you could get a Ferrari. Although Porsche is a decent car.

A Porsche is just a glorified VW. lol
I clocked my 6br today for the 1st time
103gr VT @2883 avg.
105 Bart's hammer using VV listed max charge of N140 29.8gr avg 2770

 

[nakneker]

Fun thread, lots of good info. No wonder so many forum members have or have had a 6BR and so many variants of the 6BR. What a marvelous little case. 6BR is how I found this forum 11 years ago!

 

[Tangent]

Fun thread, lots of good info. No wonder so many forum members have or have had a 6BR and so many variants of the 6BR. What a marvelous little case. 6BR is how I found this forum 11 years ago!

Yes it does perform far beyond what you would expect just looking at it. I shoot with someone who is very competitive and he swears by it, and wins quite often too. At this rate I can see I'm going to end up with a lot more rifles! Anyone want to buy a kidney?

 

[swd]

swd,
Just a thought on the accuracy of rifles shot with a sling. I will bet u that u would be surprised at the level of accuracy of D Tubbs rifles n loads. He doesn’t go to a match with “ That’s good enough” equipment.
Look at the X-counts of some of these sling shooters. 16-18 Xs on a sling target ( a small group) would score above 3/4 of the F-class at a match. Just because someone shoots from a sling at a larger target does not mean their rifle is not capable of shooting small.
As far as the 115 class of 6mm bullets go, Those DTACs shoot small from a 7.5 T bbl. but u can’t drive them as fast as a 105-107. I am talking a 243 class case here. But if I am shooting in the wind, their BC and small groups will give the 105-107s something to shoot for. The only 6mm bullet I have not had good results with is the 110 SMK.

243’s can be VERY accurate but they just don’t win much in F Open, in fact I haven’t even seen one on the line in years. They are also barrel burners compared to the Dasher and BRX when shot hard under F Class type conditions. I’m just sayin there’s a reason you see lots Dashers and BRX’s and not 243’s in Open class. We can shoot anything we want. If it were an advantage we’d use it..

There were some lot of 110SMK’s that were phenomenal, and then there were the rest that weren’t. There was one lot I wish I’d bought 10,000. The other lots I had after that I sold..

 

[Tangent]

243’s can be VERY accurate but they just don’t win much in F Open, in fact I haven’t even seen one on the line in years. They are also barrel burners compared to the Dasher and BRX when shot hard under F Class type conditions. I’m just sayin there’s a reason you see lots Dashers and BRX’s and not 243’s in Open class. We can shoot anything we want. If it were an advantage we’d use it..

That's one of the criteria I use. Competitors won't use something that gives them a disadvantage. You do see some group think or trends in equipment choices but there usually has to be some evidence, i.e. winning to make people switch. Of course you do get options that sometimes are very good but other factors preclude them, like excessive barrel wear or hard to obtain brass.

The easy option to get your rifle to perform better though is to lend it to someone else, they always shoot better then!

 

[bozo699]

243’s can be VERY accurate but they just don’t win much in F Open, in fact I haven’t even seen one on the line in years. They are also barrel burners compared to the Dasher and BRX when shot hard under F Class type conditions. I’m just sayin there’s a reason you see lots Dashers and BRX’s and not 243’s in Open class. We can shoot anything we want. If it were an advantage we’d use it..

There were some lot of 110SMK’s that were phenomenal, and then there were the rest that weren’t. There was one lot I wish I’d bought 10,000. The other lots I had after that I sold..

I read through this whole thread,…. Great thread by the way!…. Your statement was the best of all swd!… I learned it the hard way back in 2010. Everyone or rather most were shooting Dashers, they were just getting real popular about then, there were 6.5x47’s and 6x47’s and a few others but mostly Dasher and 6brx this was 1000yd br I started off with a 6.5*284 then a 6*284 , I’m hard headed and a little slow so by the end of the season I was talking to a guy at the end of the match telling him I can’t figure out why I can’t put 10 down range in less than 8” on average, I was getting some 6” groups but no where near some of the guys groups. So he ask me who’s winning? I told him then he said what are they shooting?… I answered him….. then there was silence….. then the light bulb came on…. He saw it in my expression and said they already shot what I was using if it would win they wouldn’t have abandoned it….. shoot what the winners are running!… before I left Montana I bought a Dasher from a club member, shot it the last couple matches of the year, barrel was about gone and in the off season I rebarreled it to 6brx and several more since then! Don’t bring a Rambler to the race track if Fords are winning!…
Wayne

 

[Tangent]

My logic is how much accuracy do you need? I'm then looking for how much I can reduce wind drift independent of wind reading skills. That needs balancing with recoil of course. I'm surprised the Berger 153.5gr 6.5mm is not a top choice. It looks like it would outperform the 180gr 7mm hybrid in the wind with less recoil. Any reason?

 

[alintx]

Do it, you won't regret it!

 

[Raydee]

Only reason I can find at this point is 6BR brass is hard to find. I am in the process of starting a new build with a 6BR myself.

 

[RegionRat]

Only reason I can find at this point is 6BR brass is hard to find. I am in the process of starting a new build with a 6BR myself.

Yes, Lapua brass is not around these days.
However, in the meantime we are lucky enough to have a very close alternative from one or two other brands that is still better than making it from scratch out of 308 brass like we used to...
For example, in straight BR brass...

https://www.midwayusa.com/product/1...pping&utm_source=ammoseek&utm_campaign=780388


https://redriverreloading.com/outdo...ifle-Primer-New-Unprimed-Brass-100&r=ammoseek

https://www.brownells.com/reloading...m_campaign=1101l332201&utm_term=&utm_content=

https://ravenrocksprecision.com/norma-6mm-norma-br-50-ct/?sku=BR-R-NORMA-365

 

[Raydee]

What’s the opinion on the Alpha brass? I have been looking for Lapua or Peterson but may buy some Alpha if it is good to go.

 

[Tangent]

Luckily being in Europe, not the EU, Lapua is usually available. It's a bit thin on the ground right now but you can find it if you look around.

 

[Kracken McGraw]

Yes, Lapua brass is not around these days.
However, in the meantime we are lucky enough to have a very close alternative from one or two other brands that is still better than making it from scratch out of 308 brass like we used to...
For example, in straight BR brass...

https://www.midwayusa.com/product/1...pping&utm_source=ammoseek&utm_campaign=780388


https://redriverreloading.com/outdo...ifle-Primer-New-Unprimed-Brass-100&r=ammoseek

https://www.brownells.com/reloading...m_campaign=1101l332201&utm_term=&utm_content=

https://ravenrocksprecision.com/norma-6mm-norma-br-50-ct/?sku=BR-R-NORMA-365

https://www.grafs.com/retail/catalog/product/productId/76514One more.

 

[Bob3700]

A Porsche is just a glorified VW. lol
I clocked my 6br today for the 1st time
103gr VT @2883 avg.
105 Bart's hammer using VV listed max charge of N140 29.8gr avg 2770

I think ur not giving thr Porche a fair comparison. Not a glorified VW, more of an imported Corvair!

 

[Infrequent Shooter]

Yes that seems to be an issue, I'd rather get the required performance comfortably. Better to step up in case capacity than push too close to the edge. Straight BR or BRA are the easiest choices for me, Lapua brass, SRP(I have quite a few), accurate, low recoil, ok barrel life. It's that or Lapua 6GT I think if I want to push slightly heavier bullets/use my existing magazines. I looked at 6XC, probably a bit more capacity than I need and brass is unavailable and £180/100 when in stock here.

I looked at a line up of the 6mm cartridges. I was surprised how big the 6xc compared to others!

 

[Tangent]

I looked at a line up of the 6mm cartridges. I was surprised how big the 6xc compared to others!

Yes it doesn't look much smaller than 6CM. Seems too much for med range and at 1000yd I think there are other larger cartridges that would best it in the wind.