Chrony Numbers With 18" Barrel
Just how much power will a Direct-Flow valve make with an 18″ barrel? Lots!
Here’s a 12 shot string I shot this afternoon. The chrony I’m using I’ve been using for a couple of years with many PCPs, springers, and CO2 guns. To the best of my knowledge it is accurate. All of my guns have been close to factory specs on the chrony.
My first 12 shot string on my TalonP with 18″ barrel and 13ci tank filled to 3000psi shooting 43 grain EunJins:
1.) 993fps 94fpe
2.) 975fps 90fpe
3.) 970fps 89fpe
4.) 961fps 88fpe
5.) 952fps 86fpe
6.) 931fps 82fpe
7.) 930fps 82fpe
8.) 906fps 78fpe
9.) 893fps 76fpe
10.) 873fps 72fpe
11.) 860fps 70fpe
12.) 852fps 69fpe
I was a bit surprised by that string but then I suspected the Direct-Flow valve had a lot of potential. The 18″ barrel really made a difference.
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CRANKIN
I don’t know yet. That 12 shot string was shot in my garage. And that was only 17 shots total on the new 18″ barrel. My 12″ barrel liked JSB Kings on a power setting of 8 and a fill pressure of no more than 2700psi. However I have some of Jerry’s 6-ring slugs ordered from Tony and that is what I hope to shoot with the 18″ barrel. Judging from the power I’m making with the 43 grain EunJins I think the 6-rings will fly quite nicely. I’m looking for max power with enough accuracy to take out large pests at 50 yards or less. I should be able to do that with the 6-rings and may even be able to with the 43 grain EunJins. My Sumatra was a tack driver at 75 yards with the EunJins but all the Korean guns shoot EunJins well.
My favorite firing range has closed for good so it may be awhile before I can do some real accuracy tests. When I do I’ll post the results.
It’s making serious power! Mine won’t group Eunjin 43’s to my liking, is your barrel shooting them well Dollar?
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You should see what those 12 shots did to my backstop! I see you’re in Arizona, I was born in Phoenix and lived there and in Yuma for the first 8 years of my life. Then we moved to Big D in Texas.