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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/1/2005 7:24:26 PM EDT
[Last Edit: 9/1/2005 7:24:44 PM EDT by BigBrother]
Any B. Varminter owners out there have experience shooting at 600y+? Data such as groupings or target pics, and ammo used, would be much appreciated.

Thanks All!
Link Posted: 9/1/2005 11:49:01 PM EDT
[Last Edit: 9/1/2005 11:50:08 PM EDT by sititunga]
I've used my AR out to 600 meters (660 yds). My AR is topped with a heavy 20 inch barrel with a 1 in 8 twist. I used 69gr Sierra Matchkings and used a max load of Varget (25.5 or 26 grs - you'll need to check their data). To zero for 600 with this load you'll need to be appx 22 inches high at 100 meters. The gun shot very accurately and performed well against the 308 bolt guns on the line.

Depending on your barrel's twist rate you could try Sierra's 77gr Matchking - this bullet is the heaviest that you can still stack in a mag. I am going to try this weight next time. I have got some pictures I just need to work out how to post them on this forum.
Link Posted: 9/2/2005 4:41:58 AM EDT
I don't have a bushy varminter but I do shoot a dpms varminter with a 1:9 twist as I assume yours has---that means bullets under 68 grains most likely. Longest shot with mine and 55gr round has been a prairie dog kill at 527 yards--it took me about 4 shots to get "on target." Most of the shooting I do is more in the 450 yards and under range.

IMHO, the bushmaster rifle itself is a plenty accurate platform and should be easily sub MOA (if your able) out to 400 yards. I can get 3-4 inch groups at 400 yards with mine pretty frequently. Take the rifle, buy or borrow a chronograph and get your muzzle velocities and work out your "come-ups"--or just take the rifle and a big target and shoot at different ranges to figure out what kind of elevation adjustments you need. And, if you are shooting prairie dogs or other small varmints, a 55 grain round should still have enough knock down power.

THe problem I think you'll have after about 400 yards with a 55grain round is wind. The .223's is pretty wind sensitive and becomes especially so after about 400 yards. At 600 yards, a 10mph wind will move that little pill around nearly 4 feet or more depending on your velocity. Reading wind at lomg range is tough and that will be the limiting factor on accuracy at 600 yards with any 55 grain 223 round
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