Hunter 890 tune

[jbyrd]

I have had this ag for about 5-6 years and have put about 6000 pellets threw it.4 box's of cpls plus what ever else i could find off the shelf for .177. Time for a up date-tune. Gun still shoots fine but GRT111 is on the way so I wont spring and seals too.Witch spring and seals to use and where do I get them? Thank you for your help.

[longislandhunter]

the "E3650" spring from Maccari is a drop in replacement.  As for seal,, the small "Apex" or the "Tesla" seal will fit nicely, sometimes one of them fits better in some rifles.  Here's the website link.... and don't forget to order the proper lubes as well.  Let us know how the tune comes out....

http://www.airrifleheadquarters.com/page/page/251330.htm

Jeff

[jbyrd]

thanks Jeff. Got my son a RWS 240,ot5 for Christmas very nice trigger and gun.That is what makes me wont to upgrade the 890.

[shadow]

As brother Jeff mentioned the E3650 spring will work and the seal that fit's good is usually the New Gamo Tesla seal the Apex is slightly larger. Ed

[jbyrd]

Thanks Ed. Should I replace the guide also? I put a spring in a hunter 220 years ago, took broken (5 pieces) out put new in no lube or any thing. Don't know how long it lasted a month later it was stolen. Replaced with the hunter 890. Trying to do this one wright.

[shadow]

A proper fitting delrin guide would dampen vibration and any spring twang. Ed

[jbyrd]

Proper fit for this right size for that lookout for this and that. Not that I don't think I could do it but I do wont it done right.  Ed don't you do tunes? How bout this one?

[chaindrivecharlie]

I got a question Ed, do you sell custom delrin guides? Or know where I can buy when ready?

[shadow]

I tune about every Gamo out there along with other brands of airguns. I don't sell custom fitted guides but I think one of our members here "Pete" sells them along with tophats. I like to have the tune in front of me that way I can fit each machined guide to the spring. Ed

[chaindrivecharlie]

Thanks Ed, I'll keep that in mind.

[jbyrd]

finally time to play. put in new trigger piece of cake and Mmmmm good.shot over crony and got an avg.of 879 fps with7.9 cp's. just shot a 10shot spread of 1-3/4 at 70 yards best ever. maybe just lucky. guess i'll leave it alone till something breaks.thanks for the insight.