Hi there, thanks for the compliment. The Dasher was an easy choice for me. I had always heard about the great accuracy of the 6br. I found out that my gunsmith Dowling had created a wildcat of the 6br cartridge that was setting records all over the place. I did alot of reasearch, probably for 2 years.
I really liked the 40 degree shoulder. Owning another ackley improved gun, I think it makes a great looking cartridge. But really it was the amazing success of Richard Scatz that kept my interest peaked in the cartridge. Richard also has his guns built by Dowling. Other notable shooters have done well also, the boys down in Sacramento and up in Missoula are doing wonderful things with this cartridge. I noticed even the IBS 600 yard National champ, had one chambered up and really likes it.
Honestly though, both cartridges are great. I have seen some spectacular shooting with the 6brx as well, right here in Portland. Larry Kalhe is a good example. I believe it holds a few records too. You would't know the difference accuracy wise, I bet.
The Dasher has a slightly larger capacity I believe, between the two. But velocities are the same.
Powders like 4895 and varget work fine accuracy wise, but RL-15 really wakes this cartridge up. This is the powder the majority of the records are being set with currently. It gives more velocity over the others too.
The powder is temperature sensitive to my experience. You cannot leave a chambered round in a hot barrel very long at all. I shoot F-Class so I don't chamber a round till I am ready to shoot, as barrels get warm on 15-20 shot strings. Hot days I carry my ammo in a cooler, but mindful condensation dosn't build up on bullets, which has spiked pressure.
The warmer I load this cardridge, the better the numbers look over the cronograph. I do most of my testing at 1000 yards, and it seems the numbers don't lie. The warmer the better they group. It's a high pressure cartridge I guess it thrives on this kind of pressure.
I still have alot more learning and experimenting to do with the cartridge. I have been relying on other more knowledgable shooters to provide loading techniques and data. I have really enjoyed reading Chris Long's webpage, he provides a great resouce to Dasher shooters.
I have over 2000 rounds down the tube now. Alot of that has been target practice, but I did shoot 3 600 yard BR matches, and 6 or 7 F-Class matches and one 1000 yard informal BR match in 2008. I won three F-Class matches including day one of regionals, day one of O. state champs, S.R.S.C. 600-Palma in July. I won the 1000 yard aggregate at P.N.W. International Fullbore Champs (not so well overall). Not trying to sound braggadousious, but I think the little Dasher can do ok against bigger badder cartridges under theright
circumstances even at 1000 yards. But I don't know, I wouldn't sound so cocky If I was going to nationals
I respect all the F-Class shooters I met, they have taught me a lot, very kind to a rookie. How do they put up with us? Milanuk's the Man!
I got 3rd place at Portland 600BR one day for Hvy. Gun group. 3.5" 10 shots. 1st place 6brx, 2nd place 300WSM. Those boys are insanely good shooters down there. I listen when they speak!
I just think its a wonderful, low recoil cartridge, low reloading expenses (minus fireforming), Dies are cheap now, Forster/Redding. With extreme accuracy
. But it all comes down to the shooter/reloader in the end.
Good luck in your quest