I have the dreamline in 25. I'm trying to tune for the hybrid slugs but my velocity is all over the place...any suggestion?
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I have a .25 dreamline .....HELP TUNE
- Thread starter nic617chef
- Start date
Usually that means too much hammer spring.
I run mine at ~135-138 reg (its really hard to read precisely) and a power plenum, getting a max of about 50fpe on max hammer spring, I seem to get the best accuracy with PW 4 for NSA and FX slugs and PW 3 for kings pellets.
I run mine at ~135-138 reg (its really hard to read precisely) and a power plenum, getting a max of about 50fpe on max hammer spring, I seem to get the best accuracy with PW 4 for NSA and FX slugs and PW 3 for kings pellets.
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Usually unsteady, inconsistent fps is commonly from too LITTLE hammer spring more so than too much, or due to the fact one is tuned too far away from their plateau...The closer to plateau (more hammer spring) the tighter your fps is, and this is a general rule. One should tune to 97%-98% of their plateau to provide a mix of best consistency, and efficiency as you won't be keeping the valve open until the pellet has left the barrel in this condition...
There are other causes to erratic fps, such as dirty/gritty hammer stroke, sticky/gritty valve pin, and missing bolt probe o-ring to name a few more common reasons...
There are other causes to erratic fps, such as dirty/gritty hammer stroke, sticky/gritty valve pin, and missing bolt probe o-ring to name a few more common reasons...
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https://airgun101.com/index.php/video-channels/910-airgun-tuning-repairs try here does alot of instruction videos
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What kind of fps are you getting and also on the hammer spring is it on max out the box? or did you max out the hammer spring internal?
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