FX FX Impact MK 4 question

Ballistol/PatchWorm cleaning to remove rust preventative in barrel is recommended. Steve, at AEAC, has a great PatchWorm how-to video on YouTube. JSB pellets, 18.1 grain for .22, 33.95 grain for .25 and 44.75 grain for .30, would be ideal "starter" pellets before adjusting anything. Chances are FX tuned your M4 to one of these anyway. WM
 
Ballistol/PatchWorm cleaning to remove rust preventative in barrel is recommended. Steve, at AEAC, has a great PatchWorm how-to video on YouTube. JSB pellets, 18.1 grain for .22, 33.95 grain for .25 and 44.75 grain for .30, would be ideal "starter" pellets before adjusting anything. Chances are FX tuned your M4 to one of these anyway. WM
Thanks appreciate the reply. So just do my zeroing at factory settings.
 
  • Like
Reactions: coastal drifter
Yep, that's what I do, zero it and then start shooting. If you want to do something first, clean the barrel, otherwise, mount the scope, zero it and start putting some lead down range. You may find it's shoot at or near what you want right out of the box. Plus, if it's zeroed before tuning, you will be able to see shifts in POI and/or accuracy as you go, which may help you decide on the proper tune for your use.