First off i will say i am not at all fond of the QLA, i only own 1 rifle that has it, a New Englander. I understand its intention is to start a Maxi Ball easily, and it definitely does that. Back in the winter I gave my dad a really nice .54 Cal Hawken Barrel, This barrel has the QLA Muzzle, I got a decent deal on the rifle, all i wanted it for was the stock (I used this stock for my Green Mountain LRH .45 Cal barrel to build my 'Hotrod Hawken') Dad and i have shot together a few times, dad shot the barrel VERY well each time, his load is 100 grains of Goex 2F powder, a wool over powder wad, and Lyman Plains bullet, he also shoots a TC Maxi ball, accuracy is very similar with both bullets, the Lyman plains bullet might have a slight edge, but its close. We shot together today and i had him try my .060 Vegetable over powder wads that i make with a 9/16 Hole punch, the rifle shot ABSOLUTELY HORRIBLE, and my dad is an AWESOME open sight shooter. This was only 50 yards, dad shot 4 or 5 shots and they were all over the place, one shot hit the ground in front of the target, i seen the grass part! The bullet actually ricocheted off the ground and tumbled through the target! The only thing different was the .060 Vegetable fibre over powder wad, he switched back to the wool over powder wads and shot a group, the rifle shot great again! The Vegetable Fibre wad is DEFINITELY a NO GO in his rifle with the QLA muzzle! Has Anyone else had anything like this happen? I would not buy a TC with a QLA Muzzle unless it was DARN cheap, and i needed it for the stock and parts.