As you would probably most likely guess, Mike, I have them in both of the more popular calibres.
And, yes, me reckons some testing would be quite eye-opening. Having said that, never, ever forget that accuracy has to be the most important factor.
And I'm itching to get my digits on the H&N Barracuda FTs once they finally become available.
And the (10.5 grain-ish?) .177 Exact Heavies that Phil, The Rickenbacker, let me try a couple of weeks ago were simply stunning in the windy conditions.