Yes. The Minotaur in the main game has 200,000 N or force per buckshot on primary and secondary damage, for a total of 400,000 N. There are 5 buckshot in main Minotaur, with a combined force of 2 million N if all 5 hit.
The tested Minotaur cut the force in half, so only had 100,000x2 (200,000) N force per buckshot. In addition, there were 3 buckshot per shot, so the combined force if all three hit is 600,000 N instead of 2 million. However, the 2 jitter instead of 3.5 means a lot more of those are hitting, which is why the 3 buckshot version was OP as far as force.
The reason for the variation is the stats were copied from different sources, with the v2 one being added last minute to see if we could test two versions at once. This caused a a mistake, since the 7 shot version used per-buckshot damage, and the 4 shot version used per-shot damage. This ended up with an increase of damage instead of a reduction, so we have delayed v2 testing until next week.