rdpettit

In my experiance with T7 3f vs 2f - you really do not get a great pressure increase. The difference is in speed.... 3f reaches pressure faster and burns out faster than does 2f. In real BP and the other subs this is different.

When shooting the two over the chrono with identical loads there is not a marked increase in velocity from the longer 26"+ barrels. There is an increase but not as much as I thought it might be

Here is a velocity log from a 2f/3f outing ....