Anschutz 8001 velocity is way too low.
Posted: Sun Aug 23, 2015 11:40 am
I bought an Anschutz 8001 club air rifle a while back to use for practice and train small bore shooters at the local rifle range. I tested the velocity shortly after I bought it, 7 grain pellets are about 600 fps at the muzzle. It has about 7000 rounds through it so far. The only maintenance so far has been cleaning the barrel every 1000 rounds or so. The rifle is in excellent condition as far as I can tell.
Over the last month I'd noticed that the pellets were tearing the 10-meter target instead of punching a clean hole. Yesterday at the range I noticed that I needed to adjust elevation a fair amount when shooting. I shot the rifle over a chrony and it was only doing about 350 fps (107 mps).
Air pressure was good. I've used the scuba tank to fill other air rifle cylinders so I'm sure I don't have a low cylinder pressure problem. The bore is good. I can't feel any leaks from the action when it is fired. The bolt presses against the breech firmly, so I don't think it is leaking there. A local gunsmith (little air rifle experience) thinks I might need an o-ring replacement. The green o-ring on the brass fitting that mates to the air cylinder seems to be intact, but I can't remove it for inspection unless I obtain a special tool to keep another part from moving.
Anyone else have to deal with this problem? I'm not able to find anything on the net about it. Thanks.
Ranb
Over the last month I'd noticed that the pellets were tearing the 10-meter target instead of punching a clean hole. Yesterday at the range I noticed that I needed to adjust elevation a fair amount when shooting. I shot the rifle over a chrony and it was only doing about 350 fps (107 mps).
Air pressure was good. I've used the scuba tank to fill other air rifle cylinders so I'm sure I don't have a low cylinder pressure problem. The bore is good. I can't feel any leaks from the action when it is fired. The bolt presses against the breech firmly, so I don't think it is leaking there. A local gunsmith (little air rifle experience) thinks I might need an o-ring replacement. The green o-ring on the brass fitting that mates to the air cylinder seems to be intact, but I can't remove it for inspection unless I obtain a special tool to keep another part from moving.
Anyone else have to deal with this problem? I'm not able to find anything on the net about it. Thanks.
Ranb