Re: Tactical Shooters Equipment - What the pros use...
I can't say for sure, but the 6mm shooters I've seen ran 26-28" barrels trying to squeeze every last bit of speed out of it. However, matches with a speed limit it may be unnecessary to go that long, less you intend to set the barrel back a few times.
Seems to me it's like this: matches are won buy getting the most points. Most points come inside 800 yards. The 6mm rounds dominate inside 800 yards. The 6mm costs more to shoot, factoring barrel life. To be the most competitive, 6mm rounds are the way to go. Then, 6.5s coming in a close second with more barrel life, similar drift, more drop. Beyond 700 yards or so, the drift of the 6.5s is going to be less. 7mms offer best barrel life, most drop, and is going to have the LR advantage. So what you have to do is pick your poison and roll. Guys that are getting free or cheap smithing can easily pick a 6mm to get every last ounce of edge. If you don't have time to wait for smithing or quite the budget but want to be very competitive, go 6.5mm. If barrel life is your primary concern or most of your shooting is 700+, 7mm rounds are a good choice. If you want to lose, pick .308 Win. Now if you'll use the rifle for something other than competitive shooting, consider energy as well.
