I posted some work with the AA 10.3's previously. I don't shoot 8.4 grain as often but they do pretty well. Here is a video using my TX200 MKIII in .177 (FAC) after being rebuilt with standard AA FAC parts. There is an addition of a 3MM washer in front of the top hat. This washer is supposed to help smooth out the shot cycle when using heavier pellets. I think it helps, but it could be a placebo.
I am running a Vortex Diamondback Tactical ffp 6x24 50mm scope. I am shooting from a bench using an Allen rest with a Protektor front and rear bag. This video checks out the AA Field Diablo 8.4 grain pellets at 50 yards. These are 4.52mm head sorted to 8.4 grains. There was some wind at times. There was also a biting fly attack, which messed with me while shooting target 1. I didn't delete nor make excuses. The video does have a time log and it is noted in the time log. There are 3 bulls. The sighter target has 5 shots for the 5 shot crew. Target 1 has 12 shots as I threw one and felt 1 needed a redo do to the attack. One is an opening flyer, and the second flyer following the bug attack. Target 2 is a standard 10 shot bull.
I am running a Vortex Diamondback Tactical ffp 6x24 50mm scope. I am shooting from a bench using an Allen rest with a Protektor front and rear bag. This video checks out the AA Field Diablo 8.4 grain pellets at 50 yards. These are 4.52mm head sorted to 8.4 grains. There was some wind at times. There was also a biting fly attack, which messed with me while shooting target 1. I didn't delete nor make excuses. The video does have a time log and it is noted in the time log. There are 3 bulls. The sighter target has 5 shots for the 5 shot crew. Target 1 has 12 shots as I threw one and felt 1 needed a redo do to the attack. One is an opening flyer, and the second flyer following the bug attack. Target 2 is a standard 10 shot bull.
. Vids not off woke tube are fine . As you see there already starting and this guy aint conservative but a threat to "them" 
I generally ignore the knats and mosquitoes. They are pests but not stopping me. This horse fly was about the size of a nickel and felt like he took a dime size chunk from me. Needless to say it messed with my concentration.