Just looking for a bit of advice on what reg settings people are using in the prophet performance .22 long range barrel for the monster redesigned 25.39. I'm looking for around 55 ftlb give or take so it's shooting sweet. And not wasting air I've put the adjustable reg on and was set high so adjusted down to 139/140 ish.
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Tuning Prophet performance tuning
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Mine is shooting 965 with reg set 145bar. (53fpe) 60 shots on a 300 bar fill. Recommend 250-275 max on the fill. Reg will live longer. Recommend putting a Huma pre-reg set at 175-200 bar if you want to max your shot count without sending your factory reg to an early grave.
edit: no adjustment to the hammer spring was needed.
edit: no adjustment to the hammer spring was needed.
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https://www.airgunnation.com/topic/rti-prophet-22-2/
Some info on tuning I there.
Robert Buchanan of AOA gives some advice in there somewhere on what reg pressures RTI recommends for pretty much what you're going for (high power with the 25.4gr MRDs).
I think you'll want a higher reg pressure than 140. With the specimen I had, it was much more consistent that way (at least when the goal is heavy pellets at high speed).
Some info on tuning I there.
Robert Buchanan of AOA gives some advice in there somewhere on what reg pressures RTI recommends for pretty much what you're going for (high power with the 25.4gr MRDs).
I think you'll want a higher reg pressure than 140. With the specimen I had, it was much more consistent that way (at least when the goal is heavy pellets at high speed).
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The one I had was capable of pretty high power too, with just the hammer tension. For consistent fps though, it required a higher reg pressure than 140.
But, every gun is different, and if your particular example is shooting how you like it, well that's good news.
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So far it's zeroed at 55/56 yard (all I could zero to between the farm buildings out of the wind. But is hitting the same lead mark on a rusty old iron girder. 2 starlings dropped in to feed then a pigeon I nailed the pigeon and left it on n the floor a magpie came in to have a taste of the pigeon but got fed 25.39 grains of jsb. Can't wait to get out at the weekend with my boy and his pup on Some rabbits
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