VERSUS 0.177 by
I’m not going to go down the road of which calibre is best for hunting
fur or feather, I will leave that to the hunters amongst you. My interest
is more in the paper punching metal bunny bopping with the two main
calibres. Suffice to say that
given that the two calibres produce the same kinetic energy at the muzzle
and that the pellet co-efficient is approximately the same, then power at
distance will be similar.
accuracy of today’s air rifles is far better than earlier models,
therefore either calibre should theoretically produce the same “Centre
to centre” grouping, the difference being in the overall group size.
Now, when this is applied to paper targets then there is a certain
disadvantage between the two calibres. Let me explain. If the scoring
system is inward scoring i.e. the highest broken scoring ring is counted
then the bigger calibre has the advantage to approximately 20%, conversely
with outward scoring, i.e. the lowest score is counted then the smaller
calibre has the advantage. Therefore should we not “level the playing
field” between the two calibres? How to do this?
The easiest way would be to have the firing point different for
each calibre dependant on scoring type in use i.e. inward or outward
about bunny bashing? Assuming the rifle is zeroed centre, as it should
always be then again there should be no difference! But then what about a
near miss, For instance the pellet hits the outer rim with half the pellet
hitting the knockdown zone, the smaller pellet will loose more in
ballistic mass therefore there will not be enough kinetic energy to
activate the release mechanism, on the other hand the larger calibre will
stand a better chance of having a near miss but still having enough energy
in the remaining pellet part to activate the release. I believe here that
the two calibres are on level ground.
The ball is in your court. Let play begin.