FWIW: My 200 yard 22rf benchrest rifle is a custom converted Ruger #1 with a heavy octagonal Green Mtn match barrel. It probably weighs 13 or 14 pounds. It is also set up for offhand shooting though I use other rifles for that. The chamber is cut tight. I have to use a pusher to seat each round the last 3/32 into the chamber. It wears an old Redfield 3200 24x scope with very fine hairs and a qurter-mil dot.
I have used several different ammos over the years. I started with Wolf match-extra and then match-gold. On rare dead calm days/relays at the Etna Green range I could get a stripe an inch wide but 5 to 6 inches long with the former and slightly shorter with the latter. to me this indicated factory ammo velocity variations. In 200 yard 25 shot testing half to 2/3 would be in the middle 3 inches (24 ring on our targets) of the "stripe" with the Match-gold showing slightly tighter grouping with fewer highs and lows. I also tested a bunch of discontinued Lapua Speed-Ace I bought for offhand shooting. It was a higher speed Euro-match ammo used in running boar competition over there. ( I like higher speed ammo for offhand--subscribing to the theory that "shooter-induced-angle-of-dispersion" is usually greater than minor intrinsic ammo QC variations-----In other words the sooner its out of the barrel the less chance I have to frog it up) The Speed Ace shot tighter groups that were more circular and would keep almost all inside the 3" 24 ring. thought the group would be 3 or 4 inches higher due to the increased velocity. but I have reserved it for offhand matches since I have a sadly very limited supply.
For the last year I have been shooting mostly Fiocchi SM 320 when I can find it. its 100 buck/brick stuff. and will consistently shoot within 3 inches @ 200- IN MY RIFLE--In a dead calm--off my bench setup obviously your mileage may vary. There's a less expensive older version Fiocchi S (not SM) 320 that runs 20$ a brick less that is almost as good that I use on 100 yard bench matches and 100 yard offhand.
Most of the other guys are shooting top dollar Lapua, Ely and carefully hoarded old style Federal Match--the dimpled stuff---not the new stuff. it all depends on what the rifle "likes" we have one guy who does real well in offhand with weighed measured and sorted Blazer of selected batches.
As I said earlier, long range 22 rf is every bit as much, if not more, a game of "condition management". Our 200 yard 22rf match is a single entry which we can shoot any time during our match weekend and I have occasionally won the match simply because the better shooters shot during a good condition early in the weekend, and I got lucky and shot later, in an even better condition---I've been badly beaten like a drum the same way.
Last edited by theotherDWS; 08-06-2013 at 02:51 PM.