Does snow or rain affect a pellet or slug in flight?

[Quad82]

Yup. 

That's shooting pretty hot using a Daisy 777 at 450fps. They spec out at 360fps.

I stand corrected.
You got me thinking about it. So I shot 5 times across the chrony just now. Adveraged 366 with Polymags. I believe I was shooting the boxed Priemers back then. That was almost 30 years ago. Don’t know where I came up with 450. Thanks for the call-out. Darrell

 

[qball]

My pellet trap/target is at 20 yards on the dot. During the last rain storm I did some shooting and was thinking about the effect of the rain too. However POI did not change EXCEPT this one time I actually saw mid air splash, I actually saw the pellet hit a rain drop(no idea on where the pellet went besides it went well short of the target)! I was shocked and could not reproduce it, granted it wasn't really heavy rain but from the look of it the chance of a pellet hitting a rain drop is well less than 1%. I've shot in the rain many times and never saw any effect on the pellets by the rain outside of this ONE time! 

 

[Tenn_Bootlegger]

The answer is YES. However it all depends on the weight and velocity of the projectile. A 168 gr.rifle bullet at 3000 fps is little affected by rain in and of itself. Wind drift being the greatest factor. A pellet however weighing only a few grains can be affected greatly as it slams into individual rain drops on its way to the target. The factor being reduction in velocity ; holdover would be a good idea. Visibility becomes an issue as the harder it rains the worse the visibility. If you can clearly see your target then OK , but if not you should not fire anyway. As in any hunting situation , the heavier the projectile the less the affect on flight to the target. It's your call.

 

[Beezer]

It should act somewhat like wind. Wind at the muzzle affect bullet flight more than wind at the target. Rain drops at the muzzle would deflect a pellet more than rain drops at the target. The earlier in flight that a deflection occurs, the greater the deflection at the target.

 

[jkingrph]

I have never tried my air gun in rain or snow, but 50+ years ago while in college a friend and I were at the range when it started sleeting. I cannot remember any appreciable degradation in accuracy shooting through rather heavy sleet at 100 yards. I had a 30-06 and my friend had a .303 British.