Thomas Air Headspace tweaking, not the kind between your ears

Spent some time today at the range experimenting with headspace tweaking. I think I found some sweet spots. Each bull was shot with a different headspace length.

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So, my Thomas has a pellet seater... I am understanding your suggesting the depth to which i "seat" a pellets skirt into the breech, does indeed matter?
Seating depth matters....but I don't see big differences on the low power guns. You can see significant differences on the higher powered guns like Tims.

Changing lot numbers of pellets will require you to start all over when looking for optimum.

Mike
 
Seating depth matters....but I don't see big differences on the low power guns. You can see significant differences on the higher powered guns like Tims.

Changing lot numbers of pellets will require you to start all over when looking for optimum.

Mike
That makes sense. fortunately i shoot what i have and only discard obviously damaged pellets. Never taken the time to weigh wash lube sort and oh my, now measure my pellets length. :eek: