Target again at 50 yards . Tethered and regulated at 2400 psi . Bi pod on table . Prior to changing the hammer spring in the rifle fills were 3600-3800 psi . My compressor and tanks are rated 3500 or lower psi . That meant that I had to use my booster pump all the time to shoot paper which I do a lot of at 50 and 65 yards . So I changed the hammer spring which lowered the fills to 2400 psi . I can now teather the rifle and start with 3400 psi in a 80 cf. tank shoot 150 shoots return a second day with the same tank . Shoot another 150 shoots and still have 2700 psi in the tank after 300 shoots . Might be a good set up for off season hunting target work for some one else as well . I have also adjusted the trigger down to 1/2 pound or so to be able to do the moa shooting that the rifle can do . Not really a hunting trigger as is . And I do not have a trigger pull scale but it is very light .
Used the 15 bhn bullets out of the 140 grain swc lee mold today . Shoot 150 shoots again and I again had the moa results at least 3 times with a 5 shoot string . With the remainder all 1 inch or under . I have had these same results now with 3 bullets casted out of Lee mold in 5,12, and 15 bhn . All bullets have been sized to .357 , sorted, weighed,and lubed .
The last time I spoke with Randy he asked if I knew of bullets or molds that could be bought over the counter that would work in this rifle . And I told him that when I did I would post them for him . He did not need specialty bullet info because he already had the HP . line . But he knows that a good plinker bullet is good to have around as well for those who shoot a lot . The 3 molds I have used that have worked well are all LEE . [1 ]358-105 SWC  358-125 RF, [3 ]358-140 SWC . I have not chronyed these but I will and run the numbers through the BC hardware to see what type of energy they have at 50 and 65 yards . Might be able to still be used on small game . The bullets can be bought at Matts for the most part .Marvin