GTA

All Springer/NP/PCP Air Gun Discussion General => European/Asian Air Gun Gates => German AirGun Gate => Topic started by: Bimota on May 06, 2021, 04:40:00 PM

Title: Chronograph Day
Post by: Bimota on May 06, 2021, 04:40:00 PM

Weihrauch   HW30 S   .177

May 05  21

Pellets  Crosman  .177  Destroyer  7.4 gr

653
630
653
667
652


Weihrauch   HW50 S   .22

May 05  21

Pellets    Crosman  .22  Premier Hollow Point   14.3 gr

582
587
592
587
595


Diana   .22   340 N-Tec

May 05  21

Pellets    Crosman  .22  Premier Hollow Point   14.3 gr
704
698
699
696
705

Title: Re: Chronograph Day
Post by: ER00z on May 06, 2021, 07:10:12 PM

Those seem to be good numbers.

My Diana 470TH is does around 775fps with A.A. 16gr. Pellets for 21ftlbs, and my Diana K98 was at 745fps for about 19.5ftlbs.  Haven't run any others lately.

Title: Re: Chronograph Day
Post by: Bimota on May 07, 2021, 01:47:36 PM

Weihrauch   HW30 S   .177

May 07  21

Pellets  RWS  .177   Meisterkugeln    8.2 gr

612
611
615
619
612


Weihrauch   HW50 S   .22

May 07  21

Pellets   Air Arms  .22  Diabolo Field  16 gr 

544
541
536
529
536


Diana   .22   340 N-Tec

May 07  21

Pellets    Air Arms  .22  Diabolo Field   16 gr
647
654
653
654
655

Title: Re: Chronograph Day
Post by: tjk on May 07, 2021, 09:50:02 PM

Nice consistency in velocities Bimota. Low deviations mean alot when shooting for groups. You should be tickled with those numbers. Congrats!!

Title: Re: Chronograph Day
Post by: Bimota on May 07, 2021, 10:28:06 PM

Thanks, I was pretty happy with the numbers. Now I have a
way to track  the performance and spot any problems.
Also I put them out there so others could see them.
There seems to be a lot of interest lately in the 30 and 50's.
Between this and the SS tests people can see what they are
getting into.


https://www.straightshooters.com/ourtake/ourtakehw50s.html (https://www.straightshooters.com/ourtake/ourtakehw50s.html)

Title: Re: Chronograph Day
Post by: Deerstalker on May 07, 2021, 10:45:10 PM

Created: 04/30/21 06:22 PM
Description: HW95L .22 with ARH kit installed.
Notes 1:  New ARH piston seal.
Notes 2:
Distance to Chrono(FT): 4.00
Ballistic Coefficient: .021
Bullet Weight(gr): 14.66 gr
Temp: 75 °F
BP: N/A inHg
Altitude: 495.00
#          FPS  FT-LBS      PF
10    718      0.00    0.00   
9    718      0.00    0.00   
8    717      0.00    0.00   
7    713      0.00    0.00   
6    720      0.00    0.00   
5    716      0.00    0.00   
4    718      0.00    0.00   
3    714      0.00    0.00   
2    717      0.00    0.00   
1    709      0.00    0.00   
Average: 716.0 FPS
SD: 3.2 FPS
Min: 709 FPS
Max: 720 FPS
Spread: 11 FPS
Shot/sec: 0.0
True MV: 716 FPS