I have been playing around with it for a few weeks of owning it. At first I was not so enthused by it’s performance. I mean it did shoot good groups with slugs at 50yrds but I could not get any type of velocity compared to my m3! Finally I just took it apart and did a little easy modifications and got my 37gr zan slugs shooting 990fps with reg set at 180 bar. Also got the delta wolf programmer in and was able to move the setting info the factory settings. With that being said I’ve been putting dime size holes at 50yrds. Very happy with it now. With everything being electronic I was frustrated with all the ammo I had to blow through just to achieve the settings I was looking for. Definitely not as easy to tune as the m3 if until you know what does what on the delta wolf.