RE: RW HP Performance post programming by me, compared to pre-programming
With but an exception or three, I don't recall any previous RW programming discussions so I guess I'll take the plunge.
According to the "Daystate Air Rifle Test Sheet" the gun was setup with JSB Jumbo Beast (33.9 grain) .22 pellets. Minimum velocity was 813.90 FPS and maximum was 820.6 for an average of 50.5 foot pounds. Unfortunately, accuracy at 25 yards and 50 yards was - in my opinion - not very good. I then tried some older JSB Jumbo Monster (25.39 grain) pellets that I had on hand. Results were better but still not acceptable in my opinion.
I ordered "Redesigned" pellets and then waited a month for them to arrive.
Results with the redesigned pellets at an average velocity of 930 FPS were better, but still suffered with groups larger than I thought possible. A target shot last week at 25 yards is shown below. Two groups are shown.
Note the dime for reference purposes.
I reprogrammed the guns' High power mode last night resulting in a velocity average of 959 FPS. For those with Daystate programmers, reprogramming involved my increasing the High, Mid and Low pulse (us) settings by 200 each (results will vary from gun to gun, or so I'm told).
Results at 25 yards increased dramatically as shown below. Two separate groups are shown with each comprised of 10 shots.
Results were so positive I moved the target out to 50 yards with one group shown below. Most of the 50 yard groups were larger while a few were smaller. The group shown is probably the most representative as to shape.
I don't think I'm being unrealistic in my belief that better results at 50 yards are possible with better RW HP re-programming. A better nut behind the gun would help as well, but I digress.
Last, I placed a 1/10th size Silhouette pig at 77 meters and let fly.
My aim point was mid-height above the rear leg for the pellet strikes shown. There was a quartering tail wind wind from the right at a few miles per hour (speed estimate). Interestingly enough, my very first shot at this distance resulted in a hit. The next shot was also a hit followed by three misses in a row.
Although dramatic improvements at 25 yards resulted from reprogramming, I will not make similar claims for 50 yards and 77 meters absent comparison targets (that is before and after re-programming) to share here with you, since any claims would be suspect.
I ran out of time for paper targets at 77 and 100 meters.
I now need to either shoot paper at 77 and 100, or reprogram the gun to hopefully improve 50 yard (and beyond) performance. My goal is average 10 shot groups of .5" (12.7 mm) or (gulp) smaller.
Note that I would particularly like to hear the thoughts of anyone who has been reprogramming their RW to enhance performance. Naturally, others with germane thoughts should jump in here as well. I'm particularly interested in hearing from those with better results with their RW HP in .22 at something other than averages of 930 FPS and 959 FPS.
I'd also like to hear from those shooting Jumbo Beasts in their .22 RW HP at measured velocities. The reason for my curiosity is based on what other RW HP shooters have told me. Basically, they said that the pellets are great out to 50 yards but are not worth the effort beyond that.
Well that's it for today. I hope others that are reprogramming their Daystate rifles will jump in and share their knowledge and experience. For example, I discovered that " lower energies of 12 FPE will need a voltage of approximately 60V and higher energies might need up to 70V, this is also dependent on calibre".
Best wishes.
The other Mark B.