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 Post subject: Less Pre-Load Smoother
PostPosted: Sun Aug 05, 2018 1:32 pm 
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Joined: Thu Oct 04, 2012 10:27 am
Posts: 1108
Location: Thunder Bay,On.
A Phanton high power spring I broke a couple months ago was reground ....flattened and polished and I replaced the original non pal .22 spring.....along with buttoning the piston ...sanded down piston seal, etc...gun shoots very smooth at a sedate 650 fps with an 8.64 gr...The heavier shortened spring seems to generate way less recoil and as you can see the preload is minimal...I can install the spring with thumb pressure alone...The original non pal spring from a .22 cal shoots a .177 at the same speed as the reworked high power cut spring but the smoothness between the two is night and day...I will keep this configuration for a nice 30 yard shooter.... :D


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PostPosted: Sun Aug 05, 2018 10:30 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1271
Location: United States
Similar to how you can shorten or remove the spring spacer, except w/ a shorter spring the spring rate is greater. Just a little different is all. Pretty cool tho ay? Mine uses the full length spring w/ the spacer removed and it shoots ~9ftlbs. Super easy to cock (12lbs), smooth shooting and quieter. You can also replace the spacer w/ more spring. The spacer is 1.5" so enough spring that at coil bind = 1.5" (~12 coils of .122 wire) which will lower the spring rate but net you more avg spring force thru the stroke for more power. Would be cool if they made springs that long but I haven't seen any.
The only fyi for removing the spacer competely is the sear can catch the spring when fired and bend the spring. So you have to improvise, like making a plastic shield to block the sear from the spring but allow the piston to pass during cocking, like a sheath. Or mod the sear so it won't catch.
I mention the above b/c I know you like to experiment.


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PostPosted: Mon Aug 06, 2018 12:19 am 
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Joined: Thu Oct 04, 2012 10:27 am
Posts: 1108
Location: Thunder Bay,On.
Chevota wrote:
Similar to how you can shorten or remove the spring spacer, except w/ a shorter spring the spring rate is greater. Just a little different is all. Pretty cool tho ay? Mine uses the full length spring w/ the spacer removed and it shoots ~9ftlbs. Super easy to cock (12lbs), smooth shooting and quieter. You can also replace the spacer w/ more spring. The spacer is 1.5" so enough spring that at coil bind = 1.5" (~12 coils of .122 wire) which will lower the spring rate but net you more avg spring force thru the stroke for more power. Would be cool if they made springs that long but I haven't seen any.
The only fyi for removing the spacer competely is the sear can catch the spring when fired and bend the spring. So you have to improvise, like making a plastic shield to block the sear from the spring but allow the piston to pass during cocking, like a sheath. Or mod the sear so it won't catch.
I mention the above b/c I know you like to experiment.


Yeah I was thinking of the spacer but since I had a broken spring fixed and ready to go I went THAT route.....sure made a nice difference though....

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