GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: d_ray50 on December 04, 2019, 06:49:27 PM

Title: 1720T What shot count with small Transfer Port
Post by: d_ray50 on December 04, 2019, 06:49:27 PM

I am interested in knowing shot count from a 1720T with the small TP . Does anyone Know ?

Title: Re: 1720T What shot count with small Transfer Port
Post by: RDB on December 04, 2019, 08:45:23 PM

Thats a tough one. Don't believe ive read anyone leaving them stock long enough to get a shot string. Dont know what transfer port was in the gun, but found this.

https://www.airgunnation.com/topic/tuning-the-crosman-1720t/ (https://www.airgunnation.com/topic/tuning-the-crosman-1720t/)

What you working on? Seen your other posts. Is it lego time?

I get 40 at 12 ftlbs with a huma reg in mine. With a little work on the valve and tp.

Found this on the small tp for you.

Transfer Port Change:
As well as fine tuning adjustments possible with the Hammer pre-load and Striker settings, this pistol is included with a smaller (.047 diameter) transfer port. Changing to the smaller diameter transfer port will lessen the velocity achievable to approximately 550 fps max (depending on pellet weight) and increase the number of shots to approximately 70 per fill. The lower velocity is intended for Silhouette shooting matches where higher energies that may re-set or damage targets is undesirable. Be aware that changes to the velocity will affect sight settings. The transfer Port change is meant as a one-time change to set the pistol permanently and not a more on the fly type of change. Seek the aid of a Crosman Service station or qualified Gunsmith to change the Transfer Port.

Title: Re: 1720T What shot count with small Transfer Port
Post by: farmerjoe99 on December 04, 2019, 11:09:05 PM

Here is a shot string from a new out of box 1720T:
Created   Description   Notes1   Notes2   Weight
6/18/2019 19:19   1720t   stock      7.9
#   FPS   FT-LBS      
1   508   4.53      
2   ERROR 3         
3   520   4.74      
4   513   4.62      
5   ERROR 2         
6   530   4.93      
7   517   4.69      
8   529   4.91      
9   521   4.76      
10   522   4.78      
11   531   4.95      
12   518   4.71      
13   526   4.85      
14   530   4.93      
15   530   4.93      
16   526   4.85      
17   528   4.89      
18   524   4.82      
19   526   4.85      
20   525   4.84      
21   529   4.91      
22   526   4.85      
23   533   4.98      
24   522   4.78      
25   528   4.89      
26   525   4.84      
27   524   4.82      
28   527   4.87      
29   525   4.84      
30   528   4.89      
31   524   4.82      
32   534   5      
33   526   4.85      
34   533   4.98      
35   527   4.87      
36   533   4.98      
37   524   4.82      
38   525   4.84      
39   526   4.85      
40   523   4.8      
41   525   4.84      
42   526   4.85      
43   523   4.8      
44   525   4.84      
45   523   4.8      
46   522   4.78      
47   517   4.69      
48   517   4.69      
49   524   4.82      
50   524   4.82      
51   516   4.67      
52   510   4.56      
53   513   4.62      
54   516   4.67      
55   519   4.73      
56   512   4.6      
57   512   4.6      
58   507   4.51      
59   504   4.46      
60   507   4.51      
61   504   4.46      
62   503   4.44      
63   508   4.53      
64   494   4.28      
AVG   StdDev   Min   Max   Spread
521.24   8.6   494   534   40

Title: Re: 1720T What shot count with small Transfer Port
Post by: d_ray50 on December 04, 2019, 11:52:50 PM

Thanks Gents that is what I was hoping for I like the shots just fine for stock . I like the # of shots very well also .