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AF Talon SS numbers

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cactusrat:
I tested the Talon SS in 177 with the chrony.

My objective was to learn the sweat spot (air pressure) and to see what that thumb wheel really did in fps.

The procedure was to fill the tank to 3k for each string of shots and decrease the pressure by one turn of the thumb wheel. Pellets used for the test were Crosman Primers Heavy (10.5g), just because I have three boxes of them and they are not the best shooting pellet out of the Talon SS. 

I started at the high end and descended, so the first setting was 12 on the scale and 8 on the wheel. The number 8 was just picked out of the clear blue on the wheel.

The first string of shot (sos) at 12/8 (scale/thumb wheel) average 839 fps.
sos 11/8 avg 845, with a 6 fps increase.
sos 10/8 avg 841, with a 3 fps decrease.
sos 9/8 avg 847, with a 5 fps increase.
sos 8/8 avg 763, with a 84 fps decrease.
sos7/8 avg 663, with a 100 fps decrease.
sos 6/8 avg 571, with a 91 fps decrease.
sos 5/8 avg 487, with a 84 fps decrease.
sos 4/8 avg 407, with a 79 fps decrease.
sos 3/8 avg 338, with a 69 fps decrease.
sos 2/8 avg 278, with a 59 fps decrease.
sos 1/8 avg 230, with a 48 fps decrease.

It looks like 9 on the scale and 8 on the thumb wheel is the sweat spot for the highest ft lb.  ;D

When I get a chance, I will fine tune the test to see if I can squeeze and couple more fps out of it by turning the thumb wheel by only a quarter of a turn on each side of the 9/8 setting.

You ask what's the use of this test? It's fun to play with bb guns.

daved:
If you want to have some real fun, start playing with the top hat setting :-).  That's where the real power adjustment is, the "power wheel" is really just a fine tuning adjustment.

Just curious, how many shots in a string?  I usually used 30 for PCP's, occasionally 20.  Anything less just isn't enough to track the curve effectively.  BTW, your numbers are looking pretty good.  You can get more power from the SS, but at the cost of LOTS more air consumption, and more noise.  Later.

Dave

cactusrat:

--- Quote from: daved on December 05, 2010, 01:21:55 PM ---If you want to have some real fun, start playing with the top hat setting :-).  That's where the real power adjustment is, the "power wheel" is really just a fine tuning adjustment.

Just curious, how many shots in a string?  I usually used 30 for PCP's, occasionally 20.  Anything less just isn't enough to track the curve effectively.  BTW, your numbers are looking pretty good.  You can get more power from the SS, but at the cost of LOTS more air consumption, and more noise.  Later.

Dave

--- End quote ---

Ten shots on the thumb wheel test. 20 to 30 almost any other time.

No, I havenít played with the top hat. Thatís coming up real soon.

Iím not looking for more power, just playing around. The Talon SS is just a cool plinker and hole puncher. The .22 AAS400 is my killing gun.

Last February is when I got the air compressor and in March I started back to work again. Working 14 to 18 hours days makes it hard to play with bb guns.

I got laid off last week for four months, so bb gun playing, I mean testing, is going to be in full swing.

lillysdad621:
I had the same rifle in .177 and it was a devastating hunter at only 13 FPE. I set the power wheel at 6 power and used RWS superdomes. Filling up to 2600 psi only i woud get 67/68 shot at 864 fps +- 3 fps. Now that is consistent. I was so confident with her holding a POI that i would use it to snipe squirrels out to 65 yards with headshot. By the 68th shot the pressure was down to 2100. after that the shots would drop a bit at the time, but they were dropping and hence useless to me. I found that sweet spot and it allowed me a whole week end of hunting without carrying a scuba tank around... in fact the whole set up fit in a burgundy Eastpak with a birdwatcher club patch sawn on to it...lol

cactusrat:
Good camouflage job on the back pack.

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