Pellet performance chart

Forums Pellets, Projectiles, Slugs, & Ammo Pellet performance chart

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    Bigragu
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    Hey, all. Im unsure if the title will coincide with what I’m looking for, so forgive me if I worded the title incorrectly.

    Id like to know, if somewhere someone, wether a student of this pcp hobby, or a manufacturer, has ever come up with a chart of say, a 25 caliber 28.40 grain Barracuda Hunter Extreme, that’ll say its best performance is at this xxx max velocity. I know heavier pellets hold their own well enough, hence slugs, and I know high speeds like 1200 FPS in a 177 break barrel is mostly marketing strategy, and even if it went that fast the groups would look like a shotgun pattern. I know that. But has anyone seen a chart that’ll tell you a 30 caliber 44.75 grain JSB is most accurate in velocities of 840-880, as an example. There must be something out there, which is why most manufacturers stay within a certain velocity to meet accuracy, shot count, and energy levels. Feel free to correct me if I’m wrong in that statement, please. 

    As an entry level tuner apprentice, it would be nice to see something like this “chart” so I don’t waste time, Air, and pellets trying to accomplish something that’ll never be. Why waste time trying to get that Barracuda extreme hunter pellet at speeds of 960 FPS, when it was designed for a max velocity of 880 FPS.

    Lastly, I also understand all pellets will shoot differently in different guns, it’s the “rule of thumb” that I seek, when picking a max velocity that a pellet can shoot, without getting all squirly.

     

    Thank you, and am looking forward to the input.

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    heavy-impact
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    I'd say 880 to 980 you just have to test each gun.

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    JW652
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       The traditional rule-of-thumb for diabolo pellets in .177, .20, and, .22 is about 875fps in traditional barrels. Usually the same in .25 up to 25gr. Super heavies, large calibers, and, slugs can take more velocity and have their own individual quirks.

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    cea1960
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    H&N has a joules rating on their tins and I always thought it was to indicate their best performance.  I'm I wrong? 

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    nervoustrig
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    Speaking strictly of pellets, somewhere in the realm of 850 – 950fps has the best accuracy potential in typical outdoor conditions (wind) because that’s where the ballistic coefficient is highest.  Domed pellets in particular…but of course that’s all that matters where long range accuracy is concerned.  

    If you’re not dealing with wind, lower velocities have the potential to yield the best accuracy.  That is a product of the harmonics of the particular rifle.  What happens though is ranging errors have a bigger impact because of the more arced trajectory.  That’s not a big deal if you’re shooting at a known distance but it can be a problem in the field, even if you have a rangefinder in hand because there isn’t always a good object to range against.

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    Jlacouturec
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    i always go up tu 920 max, no more than that!!!

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