Dave I am assuming your AT 44 is the 19 inch barreled gun due to lower fps reading than my AT 44 long in 22 cal as mine is shooting in stock tune the same 21.14 grain pellets in a 10 shot string as follows,I have not shot a full string to see the full shot count before fps starts to drop and the At 44 long does have a larger air cylinder as well but I know I get at minimum 30 good shots at the fps shown below with a starting fill of 200 bar.1. 879.12. 895.43. 892.34. 884.75. 889.96. 895.27. 899.38. 889.19. 908.210. 893.6I guess the 4 inches longer barrel really makes a big difference in velocity and bigger cylinder increases shot count as well, CP 14.3s gave these results.1. 1024.32. 1027.73. 1025.44. 1029.55. 1034.36. 1025.87. 1026.28. 1021.59. 1022.510. 1019.9Still very nice fps spread and consistency out of your 22 AT 44. Mike
Really nice group! I wonder why do you have only 20 shots, my at44 is not regulated and is shooting almost the same as yours in terms of velocity (920fps with cpum) from 190-130 bar, 70fps ES for 30 shots. BUT from 170-130 bar, 30fps ES for 20 shots and there are 10 shots with 8fps ES in there... I guess this Hatsan's are low shot count shooters BUT have really low ES which is nice
Quote from: pllagunos on July 22, 2015, 08:57:33 PMReally nice group! I wonder why do you have only 20 shots, my at44 is not regulated and is shooting almost the same as yours in terms of velocity (920fps with cpum) from 190-130 bar, 70fps ES for 30 shots. BUT from 170-130 bar, 30fps ES for 20 shots and there are 10 shots with 8fps ES in there... I guess this Hatsan's are low shot count shooters BUT have really low ES which is niceHe is shooting 21.4gr and you are shooting only 14g no free lunch Also you have an high ES which will affect accuracy at longer distances, Just because a gun is regulated does not mean that you are going to get more shots, what it does mean is that you are going to get more consistent shots , and thats what counts. You have 10 shots with a 8fps ES while his whole string is less then that....your shooting 26ftlb and he is shooting 28.5ftlb with a heavier pellet. try a 21.4gr pellet to see what happens. He can also dial it up to shoot higher also.
Quote from: Bwalton on July 23, 2015, 01:36:48 AMQuote from: pllagunos on July 22, 2015, 08:57:33 PMReally nice group! I wonder why do you have only 20 shots, my at44 is not regulated and is shooting almost the same as yours in terms of velocity (920fps with cpum) from 190-130 bar, 70fps ES for 30 shots. BUT from 170-130 bar, 30fps ES for 20 shots and there are 10 shots with 8fps ES in there... I guess this Hatsan's are low shot count shooters BUT have really low ES which is niceHe is shooting 21.4gr and you are shooting only 14g no free lunch Also you have an high ES which will affect accuracy at longer distances, Just because a gun is regulated does not mean that you are going to get more shots, what it does mean is that you are going to get more consistent shots , and thats what counts. You have 10 shots with a 8fps ES while his whole string is less then that....your shooting 26ftlb and he is shooting 28.5ftlb with a heavier pellet. try a 21.4gr pellet to see what happens. He can also dial it up to shoot higher also.Yeah I know it is for getting consistent shots but I thought it also gives high shot count because I saw it on Altaros web page I guess that not everything I see on the internet is true, I didn't meant to sound like an a$#hole LOL I was just saying these Hatsan's offer really good accuracy, power and ES with little work but for high shot count you will need to trade some things like ES and power. With my tune I am confident I can take 100 yards shots in the 8fps ES sweet spot and with quality pellets, but most of my shooting is inside 50 yards and a 1" group is OK, so I can get 30 good shots for most of my shooting and inside of those 30 I have 10 shots for my long range shooting I think that tuning this Hatsans is also personal preference, some guys just hunt and if I was just hunting 10 shots would be good for me and with 8fps ES even better and with 3fps ES simply wow! But I like to plink, hunt and group so I tuned mine to suit me
You know what would be great? To have an aftermarket bottle and air cylinder extension, I mean bottles are nice but heavy and an air cylinder extension wouldn't add a lot of weight but will give you more shots and if you have a regulator you can get back those shots you loss because of the plenum and space of the regulator. I guess a 50cc extension would be 230cc of volume take 30cc because of the regulator and you have 200cc a very decent amount of air...