Reply To: How does a moderator affect velocity

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danhor7
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Well here’s my results after recording 50 shots 25 moderated and 25 naked.

I was using Crossman Premier Domes which are 14.3 grain

Using the moderator the 25 shot averaged out at 966.4 including one anomaly that was well below the average at 954 and a high of 973

Without the moderator the 25 shot average was 960.96 with a low of 956 and a high of 967

Indeed the projectile seems to continue accelerating while inside the moderator which makes sense with Neil’s reasoning.  I thought that perhaps it would be like a bullet train entering a tunnel where suddenly the train is displacing air confined to the tube.