Got my new crown yesterday.been running it over the chronograph here's what I get front power wheel on high. Reg 150 bar.hammer spring on max.and all I get is 750 fps with 44.8 pellet.help
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Crown mkll. Fps.
- Thread starter Hatmike
- Start date
Try lowering your reg pressure a tiny bit at a time while shooting over the chrony. You may be over pressure in the reg for your hammer spring. Try lowering about 1/8 to 1/4 turn at a time and dry fire a couple times before shooting a pellet after each turn.
Kenny
Kenny
Upvote 0
Oh 
yeah.thanks Kenny lowered reg to 130 sweet .she shoots 850 on the nose.thats the speed I was after.
yeah.thanks Kenny lowered reg to 130 sweet .she shoots 850 on the nose.thats the speed I was after.Upvote 0
I know my crowns I had to pull the stock off attach the power wheel back on and adjust the hammer spring on max until there was very little play…then after putting the rifle back together the tuning process starts. There is an older thread with a few videos attached.
Tony P
Tony P
Upvote 0
^^^^^*that!!!
since it’s a pain to adjust crown’s HS preload I would just max it out and call it a day. To max it out put the HS wheel on high then increase the preload till you can cock the gun anymore then back off half of a turn or you can cock the gun again.
Upvote 0