I need a tune for my M3 25 Cal 600 barrel

[Sam1951]

I will be shooting M3 25 cal 600 barrel, 33.95 grain mk11 pellets, does anyone have a good tune for that

 

[rc4fun]

https://www.airgunnation.com/topic/your-m3-tunes-here/?referrer=1

 

[Sam1951]

Thanks