Don, doesn't one cause the other? Without acceleration, from standstill to max velocity, you would not have the pellet to pellet deformation, right? Well ..... maybe a tiny bit from passing through choke constriction.
SRH [/quote]
Stan, you are correct that both types of deformation are related to acceleration. In one case, there are multiple pellets in intimate contact. In the other, there is only one pellet being accelerated. A high enough force could cause the pellet to deform just due to the force.
Note that uniform circles (round or spherical things) naturally "clump" into hexagons (six sided). So, upset pellets are likely to have six dimples in one plane. Surprise, surprise.
Jones is quite clear that hard shot will pattern more tightly that soft shot. Likewise, he is clear that bigger bore patterns more tightly than smaller bore. Well proven based on statistically significant data.
DDA
