Re: What's your favorite round for shooting F-Class?
For F-Open, you see two groupings mainly:
1. 7mm: 284, 284 Shehane, short magnums. These have max wind-busting ability and the magnums have very short barrel life. The straight 284 and Shehane have much better barrel life than the short magnums.
2. 6mm Variants: 6mmBR, 6BRX, 6Dasher, 6XC, 243WIN. Out to 600 yards, it is very tough to beat a plain 6mmBR, even on a windy day because it is the most accurate cartridge on the planet from 300-600yards. Beyond 600 yards, and the 6mmBR improved versions and larger cartridges start to look good because of the extra 150fps+ they provide. On a windy day at 1K, the 7mms have an edge. On a moderate day at 1K, the 6mm improved versions probably have the edge because of their pure accuracy and mild recoil.
I shoot a 243WIN and it is a good cartridge, but I'm switching over to the 6BRX because I will get 500-1000 rounds better barrel life, a less fussy and more accurate cartridge, use 10gr less powder while only giving up 25-50 fps...I don't push my 243WIN. I also expect my primer pockets/brass on the 6BRX to last longer because they use small primers vs the large on the 243WIN.
Some 6.5mm fans are going to get up in arms since I left them out. My response is that if you are thinking of the 6.5mm cartridges, you should look real hard at the 7mm: better ballistics. For a while, the 6.5x284 was considered THE 1K cartridge for F-Class. That was until the US F-Class team shooting 6.5x284s got completely shellacked by the Brits using 7mm short mags a few years back. Bottom line, many folks who used to prefer 6.5mm cartridges have migrated up to the 7mm ones.
Hope that gives you some things to consider.
PS. jjones88, based on your comments, I'd suggest looking at a straight .284. Dgosnell who posted above is a top F-class shooter and could provide you with a lot of good info. He got 3rd place at this year's F-class Nationals....among other notables... You might want to PM him with your questions.