The big thing for me in going with the 6mm GT was that I did not want to fireform, and now 6 dasher, and 6x47 is available (happened about the same time I started my build). I wanted better barrel life than the 6mm CM and the 6x47.
I also enjoy things with room for discovery, and staying just outside of the mainstream.
Basically I have accomplished 6 Dasher accuracy with lower pressure (QL Estimate) at the same velocity. My barrel life is still pending. I cant comment on mag feeding because my rifles are single shot, but I have a 3rd in the works.
I am not disappointed with my choice. Be adventurous, it makes for a great story at the range...
~Cam
I'd agree very much with this.
Mine took a little tuning, and I ran into a bunch of non-6GT specific technical issues along the way, but now that they're sorted, both of mine are lasers. One is running 105 Hybrids at 3100, and the other is running 108 BTs at 3050FPS.
Both were built as 'just screwing around' guns, so they're not setup to really compete against the other 6mms in F-Open, but in a properly configured stock/rest/weight (or if somebody had a panda setup in an F-Open config), I'd be willing to bet they'd run right with the BRAs, BRXs, Dashers, etc. I see at mid-range.
I don't think it was as easy to tune them as a dasher might be.
Regarding feeding, only one of mine is built on a repeater, and it does cycle with 100% reliability using AICS mags. The overwhelming majority of the time I'm single feeding them though.
The only critiques I have of the GT are pretty minor; I'm not a huge fan of either brass offering currently available.
Secondly, I think it's got a hair bit more powder capacity than is optimal for Varget. I really think it shines with H4350 rate powders, but it's marketed as being built around Varget.
Lastly, the reloading practices of the crowd that shoot this round are a little 'head scratching', which makes you question a decent bit of the info you see posted. (i.e. some of the stuff I see on the 6GT FB group is pretty wild, lol. Several jumping powder charge nodes in .5gr increments, lots of folks just blindly running 34.5gr of varget cause the FB page says it would work etc.).
I suspect the Dasher is probably a little easier to jump into, just because of its more mature BR/F-Class following. It's kinda like with .308 or .284 load info here; it's all well defined, and very established. Not so much for the GT.
I'm not claiming it's better than anything; I think it's basically just a dasher that feeds without a bunch of drama.