Harry, you said usually your first couple of shots usually shoot high until the seal warms up. I find the same exact thing happens to me. I am trying to figure out how I should zero in my scope to compensate for that. If I am stalking some squirrels in the woods, I will basically be firing from a "cold" gun because I am not shooting one after an another. So I would assume I would have to zero in lower than normal so that the first 1 or 2 "cold" shots are right on the money. I am new to hunting with airguns so I have been trying to figure out how to deal with this phenomenon. Do you zero your scope low so they will hit right on the bullseye for the first couple of shots ? Or do you just fire a few shots before you head out ? How long do you think the seal stays "warmed up" ? Trying to figure out if I get it zeroed in on a warmed up gun..say after shooting 50 shots it's holding zero, if I shoot it a few times the next day when I get to the woods... I wonder how long it stays warmed up and on target...1 min ? 5 min ? 15 min ? etc. How do you deal with this phenomenon in regards to hunting?
Thanks guys! Yeah I don't know why I didn't think about taking the laptop to the porch before and work and shoot at the same time I won't be able to do it for much longer though. The cold weather will be here before I know it. Randy: I don't like "defacing" my guns. The more original they stay I feel the better it is or the more the resale value. I 'll be scoping it in the next couple of week so it's no big deal for me. It's performing really well with that fat front sight and I am managing ragged hole groups which blows my mind, so I 'm leaving it. I have the iron sights adjusted to where all I have to do is just put the tip of the front blade right under the bullseye or target, and the pellet will strike just a hair above it. So that way I can still see the 0.75" and 1" black bullseyes I use, or most of a squirrel's body or head. Lochlain: You can't really zero the gun for that. I just compensate and aim slightly lower for the first 2-3 shots and then it's dead on. This is very common with Springers, and most of them tend to shoot high for the first few shots. I am not sure how long the gun stays "warm" after you stop shooting, but it has to be several minutes, because I have taken small 5min. breaks to go to the bathroom or get a drink, or make an instant coffee, come back and it still shoots pretty "normal", but that's after taking 50 shots. It would depend on how much you had shot it. If you only took 3 shots, I would imagine within a couple of minutes and depending on the ambient temperature, that the seal would go back to its original size. If you took a lot of shots and the seal was well expanded and heated, it should take a little longer to go back to original state. Now having said that, the POI (point of impact) should not be considerably higher when the gun is cold. If it's like an inch at 25 or 30yds, that's too much. My Diana Springers shoot 0.3" to 0.5" high at the most at 25yds. You should still be able to make a decent shot on a critter unless your gun shoots 1" high which is kind of excessive, and could possibly indicate higher tolerances (not tight enough) are present in your airgun.