mine doesn't do 13.43 well at all.. It DOES like the 10.03 MK.3s. i'm at 2100-2150 PSI.. I'm at 1 - 1 1/4 turns in from fully backed out on the HS.. I'm shooting them at 930-941fps and getting excellent accuracy. I've also had good results from heavy slugs like Griffin 13-14-16gr Flat Base .1771 slugs. Varmint Knocker 13.5 Flat base HP .1771 slugs, 16gr TAKE AIM AIRGUN SLUGs .1775( originally thought .1771 but its .1775.. these shot incredible from my Gen 1 avenger bullpup, EVEN AS slow as 760 MV when i was testing them. I'm slinging them a bit faster now and tested them out to 75y with results I am still having trouble believing are real.
i found that the KO 10.03s were GREAT.... Above 920fps. and above 2100. I tried them at 1800psi and they were ok.. but more like half inch groups at 30, basically 1.5-2moa to be expected at 100. I sped them up the next day and thats the Shoot N C target... dealt with some wind gusts on bottom Middle bullseye, then got more patient for left and right at 45y. and those are what i pulled.. the white target with Penned on targets... That was NO wind, 16gr Take AIM slug at 55y hunting a zero (i just got them today) and 75y once i found it.. Needless to say this is the best i've ever gotten with anything out of that gun.
as far as pellets.. 10.3JSB, 10.3 FX were fantastic. 10.65 baracuda match were good close in but fell apart after 35, CPHP Lite were surprisingly good although had issues slowing them down to pellet appropriate speeds... if you're shooting close, don't matter. CP Ultra Mags pretty ok. JSB and AEA 13.4 were good and 13.7 good.
View attachment 534938View attachment 534940View attachment 534941View attachment 534943 Trigger pull, scope cant, and stable hold make a MASSIVE difference.. I, and many others have inclinometers and spirit levels on our guns. Tiny amounts of cant will absolutely cause tiny differences in point of impact when you SWEAR you're holding on the same damned spot.. If your Parallax isn't set exactly right.. if you're shaky, if you flinch in anticipation, pulling your head off the scope.. Keep your eye and scope on target, watch the pellet or slug travel to your target.. Focus on that trigger, Smooth and consistent. Make sure your holding the rifle and scope at the same angle no matter what. Make sure your parallax is good. I promise your groups will improve just doing that, even if your gun is set to the balance and harmony of a Tourette's afflicted parkinsons patient chihuahua smoking meth while sitting in a paint shaker while you try to take a treat out of its mouth.
just try every damn pellet and slug you can afford. However JSB KO mk3 is a good one to start with. aside from the 13.43s not shooting well out of mine at all, they don't expand worth a DAMN. terrible slug. I'd suggest KO 10.03 mk3s, 4.51, Cuda match 4.51, FX 10.3s, FX 13.4s (cheaper than jsb at the moment, basically interchangeable) or AEA 10.3 and 13.7s (or JTS). Boutique slugs seem to work best for .177 other than KOs and some Zans.
Get that damn trigger as light as you can safely operate. you CAN get it down to Ounces. the adjustments are there and you can put longer grubs in i belive 4x10 or 4x12 to get more adjustment, just get the E clips off the stock screws and replace with those grubs.
Ebay search "take aim airgun slugs" he offers 12gr-16gr and i have only tried the 16 to great effect, "varmintknockers" (13.5-16.5) Be sure to ask in the notes for .1771 also GriffinAirguns.com his .177 13-16gr flat base worked great for me in both my slug capable .177s.
it also doesn't hurt to burn a devotional candle with the sacred image of Paul Harrell on it at all times when firing any projectile weapon, at night pray while your right hand is placed on the OLDEST copy of the Lyman Reloaders handbook you can find.
