So I finally got around to buying an FX radar chronograph, and wanted to test it out on my 1322, mods are as follows14" mac-1 barrel with all preps and TKOMac-1 delrin transfer portMac-1 extended probeMagnum Air adjustable cup seal/valveSolid roll pin.038 hammer spring with adjuster (for the rare over pump situations, and to make for a light trigger at 4-6 pumps)Fluted hammerThat's it for power mods.Pellet used AA 15.89 diabolo:6 pumps - 422 = 6.3 fpe8 pumps - 489 = 8.4 fpe10 pump - 535 = 10.1 fpe12 pumps - 575 = 11.7 fpe15 pumps - 625 = 13.8 fpeI was going to push it up to 18, 21 and finally 25 pumps but did not see the point at this time Very pleased by these figures and wanted to share.
Thanks, that was just to see what she could do, for the pistols I do like speed over slower heavy pellets, so I have settled on the jsb rs 13.43 @ 7 pumps for 7.5 fpe @ 502 fps average. Should be good out to 15 yards, 20 max for chippers and yard vermin (my current comfortable iron sight range for .75-1" kill zones).Guess it's nice to know a 15.89 @ 20+ pumps with the hammer spring tension up should drop a trash panda or groundhog with a brain shot from the correct angle and 15 yard max.
I gotcha man, I was trying to find a balance between noise/trajectory/and backyard safe energy for both target fun and light duty pest control. I dislike chipmunks trying to get into the house and shed and vehicles, so moving target practice it is, lol. The stock numbers on your 2289 were not too shabby at all, especially for punching paper. Is your setup still a carbine or have you gone pistol style setup?
Today just wanted to see what the gun would do full out. 22 pumps with retained air shooting .22 polymags got to 694 fps! I'll never go that high again, but nice to see it lays it down. Totally enough for the wayward raccoon. if I went heavier hammer spring I bet 715 fps is doable at 22 pump with polymags. . .<a href="https://app.photobucket.com/u/Racrt11/a/e0c4b78b-98c6-4c8a-95a5-f18b224f5644/p/a3c52a39-014f-4991-9c4c-2bda7ef0822e?width=960&height=720&fit=bounds" target="_blank">[/url]
That's pretty good FPS/FPE. The best Ive gotten out of a 2289 (no mods) 6pumps 425-5.73 8pumps 475-7.16 10pumps 502-8.0 12pumps 525-8.73.
Quote from: Simplemann on April 29, 2023, 06:02:22 PMThat's pretty good FPS/FPE. The best Ive gotten out of a 2289 (no mods) 6pumps 425-5.73 8pumps 475-7.16 10pumps 502-8.0 12pumps 525-8.73.On my 2289g I have seen 605fps w/ 14.3gr pellet @ 18-20 pumps (can't recall). That was right under 12FPE which was impressive. However, I decided that the 2289g (especially with a silencer) is too long to be a bugout gun. I am now more focused on what I can get our of 1377 and 1322 with stock barrel length.
Quote from: Sh00ter on August 07, 2023, 12:31:46 PMQuote from: Simplemann on April 29, 2023, 06:02:22 PMThat's pretty good FPS/FPE. The best Ive gotten out of a 2289 (no mods) 6pumps 425-5.73 8pumps 475-7.16 10pumps 502-8.0 12pumps 525-8.73.On my 2289g I have seen 605fps w/ 14.3gr pellet @ 18-20 pumps (can't recall). That was right under 12FPE which was impressive. However, I decided that the 2289g (especially with a silencer) is too long to be a bugout gun. I am now more focused on what I can get our of 1377 and 1322 with stock barrel length. I just got 579fps/10.64fpe on a stock 10.1" barrel at 15 pumps...posting in pump up the jam thread with chrono
Quote from: 2A Georgia on September 04, 2023, 07:59:15 PMQuote from: Sh00ter on August 07, 2023, 12:31:46 PMQuote from: Simplemann on April 29, 2023, 06:02:22 PMThat's pretty good FPS/FPE. The best Ive gotten out of a 2289 (no mods) 6pumps 425-5.73 8pumps 475-7.16 10pumps 502-8.0 12pumps 525-8.73.On my 2289g I have seen 605fps w/ 14.3gr pellet @ 18-20 pumps (can't recall). That was right under 12FPE which was impressive. However, I decided that the 2289g (especially with a silencer) is too long to be a bugout gun. I am now more focused on what I can get our of 1377 and 1322 with stock barrel length. I just got 579fps/10.64fpe on a stock 10.1" barrel at 15 pumps...posting in pump up the jam thread with chronoWhat pellet?I think I saw well over 500 w/ my stock 1322 and 14.3gr pellet with a few over pumps...can't recall but it was no more than 15. BUT definitely wasn't 579fps...maybe 530 or so.