pellet velocity

Is there a chart somewhere that lists the optimum velocity for various pellet weights and calibers?
Maybe let us know what pellets you are using and what type of rifle. Those with similar set-ups can give you a place to start. From there it will require you to test each pellet/ velocity combo to get your desired results. I can tell you that as a general guide that JSB lead, domed pellets will typically work well in the 885-910 fps range. That has been my experience across multiple air rifles in .177, .22 and .25.
Kenny
 
Is there a chart somewhere that lists the optimum velocity for various pellet weights and calibers?
It's the diabolo shape that is speed sensitive. 850 is kinda universally agreed to be a common sweet spot, some guns will shoot them accurately past 900. Start at 850 and see where you can go.
 
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I agree with all that's already been said and will add the following...

Slow twist rate barrels generally seem to be okay with higher speeds and pellets. (920+ and even up to 980)

Polygonal rifling also seems to be more tolerant of faster speeds.

Some pellet designs are outliers to the 800-915fps rule.
 
I have a Karma SLS Standard in 22 cal. My pellets are JSB 15.9 shooting in the high 990 range. Accuracy seems to be very good. I think the 1 high shot is when it fell off the regulator, or maybe just me:oops: That's at 42yds.
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There are no shortcuts or magic formu!as or charts to let you skip finding out where your gun shots best. I test a fairly wide range of pellets but at the velocity the guns shoots them with the regulator the factory set and the hammer spring a little under the peak for that regulator setting. Then I may change the regulator if a pellet looks decent but the velocity seems high or low. I have not found velocity to be a strong enough influence to change an inaccurate pellet to accurate. But it can make a good pellet better. To me velocity under 800 or much over 900 is a little suspect and possibly worthy of changing. But I have several guns that shoot well at up to 950.
 
An interesting phenomenon can be seen when collecting downrange velocities, either through Labradar or a downrange chronograph....

Some of the more wasp-wasted, traditional shaped pellets will be going the same speed at 50, 60+ yards, whether they left the muzzle going 880 or 950. The shuttlecock shape simply strips velocity. In short, depending on the particular pellet, you're just wasting air over a certain muzzle speed.

Generally, as the waist-to-caliber ratio goes down (less exaggerated waisted pellets) and as the pellet length goes up, more speed is retained, making a faster starting speed beneficial. Ie, pellets on the heavier end of the weight range for that particular caliber. And of note is that at a certain point of pellet length:caliber, you get into needing slower twist rates in the rifling to keep them behaving at long-for-pellet distances.