Hi I would like to add my thoughts on thread ,
First and foremost , slugs better for longer range , due to the fact they fly better then a pellet (Higher BC) , also Most slugs tend to be exact weight and diameter and weigh exact weights ,I do make sure I do sort all of my ammo for this reason , Plus slugs and get a bent skirt like a pellet to have it fly differently then ones which are straight , SO you doing good with your testing , just shoot 75 and 100 yds or more to get a real accuracy of your tune ,
1 shooting 12 yards with slugs serves no point , I have a few taipan veterans and can group better at 100 yds then your 12 yard groups , In My 25 veteran , I had a LW stock and I did upgrade it to a unchoked slug barrel , Mine shoots a few slugs sub moa here is my best preforming 25 caliber veteran slugs ,
1. NSA 36.2 gr
2, MP 48 gr
3, 40gr BT
Mine likes 920fps to 1010 fps
.OK barrels , I own 3 genuine cz barrels in 22 cal only , I never saw a CZ.25 cal barrel , I have seen many taipans with engraved CZ with LW barrels among other brands , I believe in USA many guns from dealers , were bought with out barrels and they were fitted by USA dealers in past , SOME dealers fibbed and SAID OURS are CZ barrels when they were not at all ,
I am sure Taipan if you dig around forums you will see this was true since the mutant , but moving forward they may have changed practices ,
The Taipan is a great gun for pellets or slugs , but for a good slug gun you need to add a bigger plenum , and or modify your valve manifold , and spring settings , and reg pressures to get them hevier slugs to go 925 to 1000fps ,
LOU