Dont Trust My Chrony Indoors!

[Skot Ruthless Teale 1,701]

Kicks out some right readings!! using some stick on LED lights.

 

heres a few figures.

 

hw98 ((SFS tuned) fired about 1200 pellets)

over 5 shots using falcon accuracy plus 7.33gr (not weighed washed or lubed) its apparently got a spread of 32.1 fps or that's 0.91 ft lbs!

 

 

oh it gets better.....

 

hw100kt

over 5 shots apparently it has a total spread of 34.8 fps with jsb exact 15.89gr(not weighed washed or lubed) that's 1.4 ft lbs spread over 5 shots.... my arse!!! :laugh:

 

hw77k

RWS hobby 7gr (not weighed washed or lubed)

heres 5 shots- between about 30 errors because of the lighting!

 

853.0 highest 11.31 ftlb

834.7

821.2 lowest 10.48 ftlb

849.8

822.6

spread- 31.8 fps / 0.85 ft lb

 

hw97k

RWS hobby 11.9gr (not weighed washed or lubed)

again loads of errors! 10 shots (actually 40+)

 

618.8

619.8

622.9

621.0

610.6

619.7

627.7 highest 10.41 ft lb

619.3

615.0

610.5 lowest 9.85 ft lb

 

spread- 17.2 fps / 0.56 ft lb

 

This riflle has an old cut down vmach spring from my old hw97 .177 hence the low power. but its good enough for me.

 

im going to be stripping and giving both the 77 and 97 a thorough polish over the next few days to see if theres any power increase I have chronoed before, but im off out tomorrow to see how different the chrono reads outside compared to indoors with dodgy lighting

 

Just hope the 98 and 100 aren't actually that inconsistent!!

[villaman 9,982]

What chronograph are you using ?

[Skot Ruthless Teale 1,701]

chrony f1 .. temperamental !!!

[walshie 2,804]

I thought it said in the instructions not to use under artificial light.

[Skot Ruthless Teale 1,701]

I thought it said in the instructions not to use under artificial light.

dunno haven't read them lol

they sell a lighting add on thing that's about 70 quid!

 

im going to try it out in the field tomorrow and see how different it reads!

[walshie 2,804]

 

I thought it said in the instructions not to use under artificial light.

dunno haven't read them lol

they sell a lighting add on thing that's about 70 quid!

 

im going to try it out in the field tomorrow and see how different it reads!

 

 

Typical man eh? Instructions are for wimps.

[Skot Ruthless Teale 1,701]

Chuffin raining now soon as i got to the farm.!

 

Dont think im meant to chrono my rifles !! Lol

[WoodsmanJim 160]

I have an F1, it's always been near impossible to get readings from it indoors or even on very grey overcast days outdoors. But I guess if you want fine tuned accuracy from it, then it's going to need only optimum conditions in which to work. Can't comment about other chronos, never owned or used any others.

 

Jim

[andy97 209]

ye indoors no good mate outside needs to be to get proper readings

[PJWmids 35]

It's not just me then, my f1 chrony can be temprimental with different outdoor conditions, if the battery is wearing can also not help matters.

Edited December 29, 2013 by PJWmids

[Skot Ruthless Teale 1,701]

I find if you dont have the rifle in exactly the same position it gives slightly higher lower reading upto about 30 fps !??

[davyt63 1,845]

hi Skott

artificial light is a

 

you might want to make your self a jig,to sit the rifle in,each time you test it.make sure its between the sensors,and make sure its the right distance away from the sensors,Si uses one and we get correct readings due to the correct ways to use it

 

 

oh yes! they are erratic readings

[Skot Ruthless Teale 1,701]

Hw77k outdoors 4

 

hi Skott

artificial light is a

 

you might want to make your self a jig,to sit the rifle in,each time you test it.make sure its between the sensors,and make sure its the right distance away from the sensors,Si uses one and we get correct readings due to the correct ways to use it

 

 

oh yes! they are erratic readings

seen si's vid doing his old hw100s off the bipod and boy was it consistent!!

just got the results from yesterday morning outside

[davyt63 1,845]

Hw77k outdoors 4

 

hi Skott

artificial light is a

 

you might want to make your self a jig,to sit the rifle in,each time you test it.make sure its between the sensors,and make sure its the right distance away from the sensors,Si uses one and we get correct readings due to the correct ways to use it

 

 

oh yes! they are erratic readings

seen si's vid doing his old hw100s off the bipod and boy was it consistent!!

just got the results from yesterday morning outside

 

 

C'mon then lets have em

[Skot Ruthless Teale 1,701]

Hw77k outdoors 15 shots to 'warm the rifle up' then chrono with rws hobby 7.0gr straight from tin... 4 degrees outside

 

820.8

820.1

816.1 lowest 10.35 Ftlb

824.4

825.3

816.3

816.1

821.5

827.2 highest 10.63 Ftlb

826.8

 

average- 821.46 / 10.49

spread 11.1 fps 0.28 Ftlb ....... not bad

-----------------------------------------------------

 

HW97K rws hobby 11.9gr straight from tin. 15 shots to 'warm up' the rifle 4 degrees temperature

 

602.8

601.3 lowest 9.55 ftlb

603.1

607.4

603.4

605.1

601.4

608.9

611.9 highest 9.89 ftlb

606.9

 

average- 605.22 fps // 9.68 ftlb

spread 10.6 fps // 0.34 ftlb --

not bad also for 2 factory standard rifles

 

not bothered about numbers but they both are as accurate as they should be so im happy. see if theres any increase in power after a 'home tune/fettle/ proper polish'