Noob efficiency quesiton

[mcoulter]

Last night was the most I have shot my FX Royale in one sitting. While not a lot, this did equate to 5 magazines or 60 shots. All 48 shots were on high-power and with JSB 18s. My initial fill pressure was 220 BAR (gun gauge) and I shot it down to 151 BAR. According to Sikes' calculator this gives me avg 0.97 FPE/cuin per shot (17 psi used per shot at 32.5 fpe).

http://www.calc.sikes.us/1/index.php

start psi = 3190
end psi = 2190
gun tank volume = 480 cc
pellet weight = 18.1
total number of shots = 60
avg fps = 899

Again, I'm a noob with this rifle still. My hammer spring is 3 turns out from fully screwed in. My thoughts are to try backing this out little-by-little until the accuracy drops off.

Any thoughts or suggestions would be appreciated!

 

[Menttaliist]

Don't trust the gauge on the rifle, sometimes can be some bar off and that may cause you to underfill the rifle, getting less shots. It's a nice reference point to know when to refill the rifle anyways and if you want to know the real pressure on your rifle vs the one showed on the rifle gauge, then you can compare it with the one in the tank/pump

 

[Tominco]

Back it out until your 18 grains are shooting 870-880. 
Then, If you want more shots per fill, use the power gauge. You'll shoot much slower but, get many more shots. eg. I must have shot ~60 shots last night using power level 1. My pressure only dropped about 15-20 bar. 
Tom

 

[mcoulter]

Thanks for the info guys.

Menttaliist - You're right. I do see a discrepancy of 10 bars between the gun and my tank. My rifle reads 10 BAR lower than the tank. So I did fill to 220 on my gun which showed as 230 on my tank.

Tom - Thanks I'll give those velocities a shot ;-) I had a s510 before and enjoyed shooting it on low at like 20 yards. That was a ton of fun. I am hoping to do the same with the Royale too! I ordered some 14 grain jsbs just for that!

 

[mcoulter]

Guys, 

I just want to double-check the preferred flavor of thread lock for keeping the hammer spring tensioner from backing out. Is it the Blue loctitle (242) that should be used here?

Thanks!

 

[Menttaliist]

I'm using the 242 medium strenght and it work just fine. I have broke it once and no problem at all, you will not need heat, with 2 drops on the back of the hst adjuster once you have adjusted it and it will do the job perfectly. Cheers