Re: Gas guns at 1000
I occasionally shoot 1000 yards with a 260 gasser.
One time with my 223 service rifle, and it did surprisingly well.
I have one 260 load that can hold 1 moa the whole way.
Load development is more tedious, but once you find a consistent one, the pay-off is nice.
I run a 20" DPMS style rifle, and with that load it should be good to 1200 yards, although I have yet to take it that far as my home range only goes to 1k.
I have a 308 gasser with a 18.5" barrel that is good to 900 yards.
It actually seems to shoot the tightest groups out at distance.
1000 yards seems more of a status symbol than anything else.
If you're at home at 600 yards, have good ballistic data out to your calculated maximum range (around say: 1200 ft/sec), have a descent, repeatable scope, and know how to use it properly, 1k is no more difficult, save for the wind.
Wind is sooooooooo important, and dominant, that it virtually makes all guns equal, whether they are 1/4 moa tack drivers, or 1 moa gas guns.
The differences at the target would be negligible unless the driver were absolutely exceptional, or the winds exceptionally light.