Is there a rough way to determine barrel length vs fpe at a given pressure? Lets say you want to make 100fpe in .25 at 150 bar. Obviously 10” barrel is out, and 35” is over kill. Looking into a future project is all.
Tuning Min barrel length vs max fpe
- Thread starter vmaxpro
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i doubt over 16" or so is doing much for you, but im guessing you can vary fps 100 or so fps per inch variation on a given setup .. its going to matter most on how much air you can move from point a to point b when the valve is smacked .. theres usually inherent limiters in the design ..
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Here is a good read.
hardairmagazine.com
Dave
How To Obtain The Maximum Power from a PCP Air Rifle
This time, we’ll discuss how to obtain the maximum power from a PCP air rifle, together with factors that limit that power.
hardairmagazine.com Dave
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Pay close attention to the term ‘lofty’ goal when choosing a barrel length. There are quite a few qualifiers in there. As an example, weight of projectile.
I would add some length to the barrel so your target energy is easily reached while still maintaining efficiency.
Dave
I would add some length to the barrel so your target energy is easily reached while still maintaining efficiency.
Dave
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My Dreamline Tact Compact in .177 cal came with a 300mm barrel. I replaced it with a 500 and immediately got 100 fps more. FWIW.
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