Hello. how’s it going. You can certainly shoot pellets out of a slug liner as others have already explained. Many people do it all the time…Like myself and Biohazard stated above.
You can shoot heavy pellets extremely well in some of the slug liners. I didn’t see what caliber your Impact shoots or what weight slugs and pellets you’ve tried but I wanted to elaborate on what the others have already told you. I always use a slug A liner in my Impact because it shoots both slugs and pellets extremely well. The slugs and pellets I shoot have almost the same POI out to 60 yards and are extremely accurate. I have both marked on my turret so I can use them interchangeably at any time without any adjustments to my Impact. I love the ability to shoot both with just a turn of the power wheel at farther distances.
No disrespect but I don’t think whether it has a pin probe or a standard probe should affect the accuracy at all, other than maybe changing the seating depth of the projectile a tiny bit. I’ve shot three or four different probes that I’ve modified to increase velocity as much as possible, two standard probes and both of the pin probes when I was slug testing heavy slugs in my Impact. I saw absolutely no difference in accuracy between any of them, just increases and decreases in velocity because of air flow changes.
It seems like you’re very new to the Impact platform, if you’re not comfortable adjusting the hammer spring pre load, the regulator pressure and other settings, give this a try…Just get some heavy for caliber pellets and test the gun with them following these steps to see if the accuracy improves at all, if it does, then you can proceed with a full re tune.
As already stated, slugs can dirty a barrel fast. Many of us polish and wax our barrels and then lube the slugs. It can help with accuracy, never usually has any adverse effects and certainly will help keep your barrel clean a lot longer. I rarely have to clean out FX barrels! So, anyway…Clean the barrel thoroughly and then give the pellets a try again. Remove the moderator to start so you’ve eliminated one more variable that could mess with the accuracy. Shoot five shots on high power(max), write down the setting, velocity and then reduce the power wheel setting to #5, shoot 5 more shots and repeat the process for each setting on the power wheel until you’ve shot them all including minimum. When you’re done, take a good look at all of the groups, velocities and see if the decreased velocity caused any or all of the groups to shoot better. If so, then you’ll need to either shoot at that setting or retune your gun(preferable) to that exact velocity.
Tuning the air gun from scratch is a lot more in depth than the testing I just recommended but not hard, just a little intimidating at first. If the gun does shoot at a lower velocity, re tuning it rather than just shooting it all the time with the power wheel turned down is definitely the best option. After you’ve figured out if the gun will shoot pellets, put the moderator back on to see if it has any positive or negative effects on accuracy. These fairly simple steps will go a long way in determining if the liner you have will shoot pellets well, it should depending on the caliber, liner, pellets and settings. From there, there’s a lot more you can do to get it shooting great! If it was indeed one of Ernest’s gun, everything was done correctly and purpose built. Take your time, I’m sure you can get it shooting great, if not, a new barrel liner is $110.
To elaborate on the answer to your last question about shooting pellets out of a slug barrel. FX barrels for the Impact are choked and all virtually the same other than twist rates. There have been a few other “secret” spec. changes to some of the newer slug liners. Because the main difference in the liners are twist rates. the weight of the projectile is very important to performance. That’s why everyone is telling you to try heavier, or the heaviest, pellets you can find to start your testing.
Like I said, I don’t know the caliber of your Impact but I’m guessing it’s a .22 or .25. If that is indeed the case, the .25 cal. 33.95gr pellets usually shoot best between 850-950 FPS but even more specifically between 890-920 FPS. The .22 caliber 25.39gr redesigned pellets usually shoot best between
930-1000 FPS and more specifically, between 940-980 FPS. Those numbers are just approximations to see how far off your velocity is and where about, you should be.
I hope this and what the others have said can help you out. Like I said, the Impact can be very intimidating when you tune it or take it apart for the first time. It’s really not hard. There are so many great videos and people willing to help that it can easily be done. Just go slow, keep track of all the parts and take notes if necessary. You got it!
Good luck, if you need more help, just let us know. Also, be sure to let us know how it turns out and if you get it shooting accurately.
Have a great day.
Stoti
P.S. I just read my post after I put in on AGN. I’m sorry it’s so long. I usually either skim through super long posts or don’t read many unless I’m really, really interested. Hopefully some of this will help you, again though, sorry it’s long. I didn’t realize it’s length until after it was posted.
