Whoever had the reg set at 1500……yes that is much too low on a 25 cal. Mine is 2100-2200 and I think on the absolute lower end of the useable range. Mine is super accurate out to 50 and I know they are capable but I think 75 and 100 consistently is much to expect from it.
Tom,Thanks for the update. I am still trying to get a consistent group at a 100 yards. I am not sure this is feasible. My avenger has 6 full turns on the hammer spring. I have tested up to 3-1/4 turns with NSA 34.9 slugs at 797 fps. Currently the regulator is set @ 2300 psi, but it also has 400 psi creep, so I am reluctant to raise the reg higher than 2500. I plan to continue increasing the hammer spring in increment up to six full turns and see what I get with NSA slugs. Will try to test at 50 yards later this week and post a update.At 3-1/4 hammer spring turns in the 25.4 pellets are at 930 fps.
Quote from: Tim F on June 06, 2022, 11:26:25 PMTom,Thanks for the update. I am still trying to get a consistent group at a 100 yards. I am not sure this is feasible. My avenger has 6 full turns on the hammer spring. I have tested up to 3-1/4 turns with NSA 34.9 slugs at 797 fps. Currently the regulator is set @ 2300 psi, but it also has 400 psi creep, so I am reluctant to raise the reg higher than 2500. I plan to continue increasing the hammer spring in increment up to six full turns and see what I get with NSA slugs. Will try to test at 50 yards later this week and post a update.At 3-1/4 hammer spring turns in the 25.4 pellets are at 930 fps. OK Bucko's Remember when we discussed possible methods to dampen out harmonics out? Remember when I brought out making cylindrical plastic or rubber bushings using o-rings on the O.D.'s spaced out on the barrel length so as to aid in holding the barrel centered in the shroud and dampening (or eliminating it) Well I guess somebody was either of like mind or was listening to the discussion because it's out on the market and even has the holes drilled through the width of the bushing/spacers to allow movement of air within the shroud. I also mentioned that. Apparently it gets the job done and it does it well. Cost's $28.00 with free delivery. I am going to put an order in tonight. Here's info and a video. ( I'd put a hold on other aspects of setting up for long range shooting till wee determine how these Bad Dogs work. I have a very good feeling about this. link; and link; https://www.ebay.com/itm/175292578021?ViewItem=&item=175292578021
Jerry, please keep us updated on how the barrel dampening goes. I have ordered mine and should be here next week. It will be a couple of weeks before I will able to install mine. Have you polished your barrel bore.Thanks Tim