Hi DillonSo speed was 915fps with 20.83gr pellets. Maxed out HS is 930fps. I would need the stronger spring to increase FPS or add shims. Monster Lights are definitely winners right now. The KO MK2s and AEA JTS 22gr aren't looking great. Not sure where all my other slugs went but can't find any. Will need to order more to try some. Probably H&Ns. Weird thing though the Slugs were only going 795fps. That's a massive loss from a 22gr pellet at 915fps. There .217 so either too small and getting blow by or too big. My guess would be too small. I'll probably pull the barrel and slug it and see what I'm working with.
See that you’re making good progress with the new Vet .22. Looking forward to seeing how she likes the NSA 20g slugs!
Re. JSB Monster Lights 20.83g.
As an aside, here is a different rifle and slower velocity, but here’s another testimonial for the heavier pellet brigade for .22 cal in the 30-35FPE range. The JSB 15.89 and 18.1g were my ‘go to’ pellets for the FX Royale 400 .22 Smooth Twist. But, the “lights” are proving to be very accurate for my regular 30y Target Challenge.
Here’s a link:
30-Yard Challenge
Hi Guys, It warmed up enough for me to do some tuning on my NW Crown with the 500mm barrel in .22. I haven't shot that barrel in a while and all my tunes were for much warmer weather. It took about 4 magazines to settle in on a tune which was giving me 3/8in 5 -shot groups at 30 yds. As the...

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