20 Calibre saves a lot of hassle discuss

[gsxrman]

Just wrong plain & simple,
your 7.9gn would be doing about 806fps at 11.4fpe, the same velocity (to give the same trajectory) from a 16gn .22 is only around 22.5 fpe, when most FAC .22's run 30 fpe for around 950fps, which is well within stable velocity for a diabolo pellet.
I explained the Compromises all 3 calibres make in a post above,
or to make it even simpler to understand, take every parameter of the shot .177 will win 1 or 2, but come last in others, likewise so will the .22, but .20 will be runner-up in every aspect & not come last in anything,
Which clearly makes it the best of the 3 compromises.

I said 16-20 grain and I said "probably" as flat if not flatter depending upon weight of the .22.
I agree that the larger heavier pellet retains more energy, that's why I have tested lots of pellets at 10-11 grain in .177. Advantage, none just make trajectory more loopy.
As it has been determined that 3ftlb of energy is what is needed to dispatch a rabbit, and my 7.9 has tested at just under 5 at FT range, and still goes through both eyeballs at this range there is more than enough "hitting" power left. Not to body shot a rabbit, and risk wounding it, but clean head shot instant kill. I do the same with rats at 5-10 yards squirrels at 40+ etc. So tell me again the advantage of another calibre or FAC air to me that would out perform my Rapid/Prem combo.

[angrybear]

I said 16-20 grain and I said "probably" as flat if not flatter depending upon weight of the .22.
I agree that the larger heavier pellet retains more energy, that's why I have tested lots of pellets at 10-11 grain in .177. Advantage, none just make trajectory more loopy.
As it has been determined that 3ftlb of energy is what is needed to dispatch a rabbit, and my 7.9 has tested at just under 5 at FT range, and still goes through both eyeballs at this range there is more than enough "hitting" power left. Not to body shot a rabbit, and risk wounding it, but clean head shot instant kill. I do the same with rats at 5-10 yards squirrels at 40+ etc. So tell me again the advantage of another calibre or FAC air to me that would out perform my Rapid/Prem combo.

Well obviously with such a perfect shooter as you must be, no other calibre in either sub 12 or FAC could possibly offer you anything.

Where as, I accept that being human, I do make errors and as such I want any & every advantage, no matter how small, to be in my favour.
Sub 12, .20 gives me the best of both camps in one package, While FAC allows instant kills from body shots &/or much longer range when needed.

And basic physics shows that a 10-11gn pellet will be loopier than a 7.9gn, if shot at the same energy, because it's muzzle velocity will be lower.