Being curious about how differently I shoot groups (not too badly) to how I shoot one shot per bull targets (not too well), I conducted a little experiment today to enjoy some indoor shooting on a lousy weather day.
The distance was 8 yards for the HW75 and 10 yards for the 2300KT, with 25 bull targets and a different brand pellet for each row of bulls. I wondered if the accuracy of this shooting would correlate to the pellet brands that shoot the best groups in each pistol. All shot from a makeshift bench.
First, the HW75:

Row 1: JSB Match S100
Row 2: Meisterkugeln 8 gr.
Row 3: H&N Barracuda Match
Row 4: RWS R10 Match
Row 5: H&N Field Target Trophy
Next up, the 2300KT

Row 1: Meisterkugeln 7gr.
Row 2: Crosman Premier Hollow Points
Row 3: JSB Match S100
Row 4: H&N Barracuda Match
Row 5: JSB Match Middle Weight
My absolutely scientific, irrefutable conclusions:
1. Pistols were not zeroed for each individual brand of pellet and so I held off. Didn't plan on that.
2. My shooting was inconsistent, pistol to pistol and pellet brand to pellet brand.
3. I found no correlation between best grouping pellet and best scoring pellet.
4. I have absolutely no scientific training or aptitude.
5. This is a really fun way to spend a grey, windy, rainy, cold February day.
The distance was 8 yards for the HW75 and 10 yards for the 2300KT, with 25 bull targets and a different brand pellet for each row of bulls. I wondered if the accuracy of this shooting would correlate to the pellet brands that shoot the best groups in each pistol. All shot from a makeshift bench.
First, the HW75:

Row 1: JSB Match S100
Row 2: Meisterkugeln 8 gr.
Row 3: H&N Barracuda Match
Row 4: RWS R10 Match
Row 5: H&N Field Target Trophy
Next up, the 2300KT

Row 1: Meisterkugeln 7gr.
Row 2: Crosman Premier Hollow Points
Row 3: JSB Match S100
Row 4: H&N Barracuda Match
Row 5: JSB Match Middle Weight
My absolutely scientific, irrefutable conclusions:
1. Pistols were not zeroed for each individual brand of pellet and so I held off. Didn't plan on that.
2. My shooting was inconsistent, pistol to pistol and pellet brand to pellet brand.
3. I found no correlation between best grouping pellet and best scoring pellet.
4. I have absolutely no scientific training or aptitude.
5. This is a really fun way to spend a grey, windy, rainy, cold February day.