New Scorpion Help, Fps & Ftlbs.

[ghillies 209]

 

i know its a springer, and there different to pcps, but my 97kt is doing

 

jsb exact .. 11.4-11.5

daystate Li .. 10.4-11.05

h&n FTT 11.1 - 11.8

bisley magnum 10.2 - 10.5

 

even 1 fps can be upto .04 of a ft lb depending on pellet used.

e.g. jsb exact 8.44gr ........ 782 fps = 11.40 ftlb , ....... , 783 fps = 11.44 ftlb

 

consistency is important at keeping your rifle legal... as you can see above mines quite allover the shop with the h&n and Li's so its doing nearly a full 1 ftlb difference shot to shot

 

 

i'd be using the jsb exacts i think..

 

a watched a chap at a range with one of the tune kits in his springer, fine tuning with shims, he was getting strings of several shots at the same feet per sec then it changes by 3 or 4 feet per sec for a similar amount of shots and then back again.. good pellet match.(the inerds were probably 'settling in..can be as simple as not enough or too much or just the rong grease, another is uneven grease coatings..bad piston cap..etc etc then each shot the inerds fractionaly change the next shot).

 

most pcp's go the other way with pellet weights i think, mine does. (heavey pellets get more fp's than lighter pellets).

 

edit... its why you 'tune to a pellet' to get the best, changing pellets generally means piddling about with the power for anything up to 1/2 a foot pound eather way do get the best shot to shot varience, then from there you pop on chairgun to tweek your zero. (its a pain int ass with some springers lol)

 

bare in mind though, you have to have a heavey end pellet/light end pellet to check your gun isnt capeable of exseeding 12fps..e.g. 11.8fp's is disey because if a change in pellet weight in the tin can put your gun over..so your tuning is subjective to what you can do.

 

10.4 foot pounds at a 1 fps varience is way better than 11.5 with 5 fps varience, just for the accuracy lol, then its worth a weigh the pellets too.

 

i think a lot of peeps are actualy hotter than they think, the groups shown often resemble pellet varience, shot to shot varience, or bad barrel match's..a 2 inch gruop happeningthat could be cut down to 1/2 groups if all the gun bitsare right..posably one holers.

 

with out being smarmy or out, its why peeps 'dont actualy know'..they never had a grouping to start with so never exspanded distance wise etc.

Edited April 20, 2013 by ghillies

[Halfinch 51]

Your Power is fine, just concentrate on your accuracy, What would you do with an extra 0.5 ftlb? that you cant do know? ;-)

Edited April 20, 2013 by Halfinch

[ghillies 209]

 

Your Power is fine, just concentrate on your accuracy, What would you do with an extra 0.5 ftlb? that you cant do know? ;-)

 

 

yeeup

[reaper1064 285]

Before you get it altered get it out for a few tins of pellets, re chrono it and then make a decision.

[danco1987 27]

10.5 doesn't sound dodgy to me for an unregulated factory rifle. As said, it should bed in. Failing that getting it regged by xtx air will make it more consistent and Darrin will set it around 11fpe for you.

[Miikee-L 72]

I had mine tested but in .177 tuesday and with jsb exacts and it was putting out 10.9-11ftlb but I'm happy with it being around that tbh, so 10.5 should be fine

 

Mike