Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr
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Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr
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Topic: Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr (Read 837 times))
Fred J
Sharp Shooter
Posts: 792
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Real Name: Fred
Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr
«
on:
February 23, 2017, 09:12:10 PM »
Has anyone shot JSB 8.4gr and AA 10.3 pellets through a stock TX200 over a chrony? My TX200 loves these pellets!
Hard Air magazine reports about 860 fps for the JSBs, which seemed to fit the trajectory that I am am seeing. However, I can't find anything regarding the velocity of AA 10.3gr pellets when shot by a stock TX200.
Thanks!
Logged
Sturtevant, WI
Air Arms TX200 .177 Cal TBT tune at 14.4 fpe
Regulated Air Arms S500 .177 Cal 19.7 fpe
Benjamin Marauder .22 Cal (MSD hammer, TSS hammer spring, 30 fpe)
redcobra04
Plinker
Posts: 260
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Real Name: andrew
Re: Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr
«
Reply #1 on:
February 23, 2017, 09:17:24 PM »
My tx200 shoots the JSB 8.4 gr at 905 avg. Basically 1 hole group completely stock.
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hopewell va
Fred J
Sharp Shooter
Posts: 792
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Real Name: Fred
Re: Chrony Numbers for TX200 Shooting JSB 8.4gr, H&N Sniper 8.5gr and AA 10.3gr
«
Reply #2 on:
March 02, 2017, 06:39:17 PM »
Today I shot AA 10.3gr, JSB 8.4gr, and H&N Sniper 8.5gr across my friend's chrony with my new TX200, which is in stock form. The rifle has about 400 rounds through it and seems to be settling down nicely. Shot 10 shots for each pellet. Velocities are in fps.
AA 10.3gr
Low: 822.5
High: 830.5
Ave.: 825.5
E.S.: 8.01
S.D.: 2.64
Ave. F.P.E.: 15.6
JSB 8.4gr
Low: 882.5
High: 916.2
Ave.: 896.9
E.S.: 33.74
S.D.: 12.72
Ave. F.P.E.: 15.0
H&N Sniper 8.5gr
Low: 887.0
High: 943.6
Ave.: 924.0
E.S.: 56.56
S.D.: 20.12
Ave. F.P.E.: 16.1
I picked these pellets because they seem to shoot most accurately in my TX200. Each of these pellets is capable of producing dime size groups at 30 yards, although the AA 10.3gr pellets seems to be more consistent. One thing I noticed about the H&N Snipers is that they are tight in the breach. I think the large E.S. and S.D. was probably due to inconsistent seating. Both the JSBs and AA pellet fit just the right amount of tightness in the breach.
Bottom line is I'm sticking with the AA 10.3gr pellets for my TX200.
Logged
Sturtevant, WI
Air Arms TX200 .177 Cal TBT tune at 14.4 fpe
Regulated Air Arms S500 .177 Cal 19.7 fpe
Benjamin Marauder .22 Cal (MSD hammer, TSS hammer spring, 30 fpe)
desmobob
Shape Shifting
Sharp Shooter
Posts: 967
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Real Name: Bob
Re: Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr
«
Reply #3 on:
March 02, 2017, 07:34:37 PM »
Wow... that's great consistency! I haven't tried the heavier pellets yet in my TX200. It loves the AA 8.4 grain pellets. I'll be trying the 10.3s after I place my next pellet order with PA, for sure.
Thanks for sharing your numbers.
Tight groups,
Bob
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USA upstate NY, Lake George region.
Avatar: 1995 Ducati 900SS SP
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Chrony Numbers for TX200 Shooting JSB 8.4gr an AA 10.3gr