6m dasher v 6br

[niceone]

i dont no why but im thinking of rechambering my 6br ino a 6mm dasher will i gain any thing ...... :-\

 

[falconpilot]

Yes!!! It's well worth it!! 150-200fps increase...Look at all the records that have fallen just this year with a Dasher...

 

[niceone]

this is what im thinking do they burn barrels

 

[Kenny474]

Not anything appreciable over a 6BR. You are only burning a few more grains of powder. I have never heard the Dasher referred to as a barrel burner.

 

[RonAKA]

One formula I use to roughly estimate barrel life is based on bore area and powder weight. For 30 grains of powder in a 6mm, life comes out to 2980 rounds. If this is increased to 33.5 grains, life goes down to 2390.

 

[Kenny474]

RonAKA, could you elaborate about your formula a bit. It sounds pretty good and I would love to know how to figure that out for myself. That could prove very useful for future projects.

Thanks
Kenny

 

[RonAKA]

It is an empirical rule of thumb formula developed by Bartt Bobbitt. Link here:

http://yarchive.net/gun/barrel/barrel_life.html

It is fairly simplistic and does not account for barrel length, barrel material, powder burn rate, or bullet weight, just bore size and powder weight. I still think it is a reasonable estimate, when simply comparing different cartridges for their relative tendency to consume barrel life.

 

[MarkS]

niceone,

Have you looked at the 6BRX. You can use our 6BR dies for loading. All you would need is a 308 body for F/L the base of the case. The Dasher and the 6BRX are the same as far as shooting records, both have many.

Mark Schronce

 

[DukeDuke]

Having the option of higher muzzle velocity, is a plus in my book. It's just money, comes and goes. There are a few things the 6mmBR Improved won't do though, like ah hum never mind

 

[niceone]

yes after looking at it the brx does look good has any one on here owned all 3 ?

 

[Moderator]

yes after looking at it the brx does look good has any one on here owned all 3 ?

Sam Hall, 600 yd shooter of the year and Nat'l Champion has all three, and he has set records with all three. His latest gun variant is going to be a 6BRDX which is sort of a Dasher with a longer neck. I do think that might be the best case geometry of all.

 

[MarkS]

niceone,

I have had 6BR, 6BRBS, and 6BRX. You can use 6BR dies for the BRX and can but factory dies for a Dasher. I think, there is not a dimes difference between any if the 6BR IMP's, it boils down to "The Barrel you have". The IMP's will give you a long range edge over the 6BR. I would not change to a Dasher from a BRX. Any one you pick will be fine.

Mark Schronce

 

[niceone]

many thanks guys....

 

[johara1]

I see the Dasher just set an other record at a 1000 .......jim