I received my Artemis M16 in 177 cal from WesB a couple of weeks ago. Thought I share my experience with you all.
This was meant to be my spare FT gun next to my Diana Outlaw which was tuned to shoot at 17 fpe very accurately.
So, I started out with the same performance goals of 80+ shots per fill, 17+ fpe.
As my Outlaw is basically the same gun, I started by duplicating the same set up. 110 bar on factory reg, lighten the trigger pull by replacing the trigger return spring, polishing the contact points and adjusted sear engagement.
I encountered two major issues, 1. The power level was over 18 fpe with 110 bar reg seeting on M16, 2. The groups were rather large 2" at 50 ft even with its favorite pellet 10.34gr JSB Heavy.
Power was an easy fix by turning down the reg setting to about 102 bar. Accuracy issue turned out to be mainly caused by the factory barrel. It had very poor crown and also no rifling at the first 1/4" from the muzzle. As always, WesB came to the rescue. He promptly sent me a replacement barrel that solved the problem of poor accuracy.
Here are my results so far, 84 shots on reg from 200 bar fill down to about 100 bar. Avg 17.49 fpe. Groups of Dime size or less at 50ft.
Future plans include:
1. Taking the distance further to 55 yards, 2. Find the favorite pellet for the gun, 3. Try the optional Altaros regulator to see it will improve accuracy/consistency.
Stay tuned.
