But **** happens, and terminal effect is key. Using a high velocity frangible varmint bullet on a fox - head on and aiming for the bib, or rabbit or grow, any hit will cause massive damage and a kill. Very much a hit or miss scenario.
On a deer though, or a broad side fox, a bullet a bit far back or forward or high or low will cause a wounding shot that will not cause a quick death.
Agreed.
Another aspect of performance for hunting rifle chamberings is bullet drop (or lack of), a better word being bullet trajectory.
Why are lots of popular hunting chamberings 'over-bore', such as the venerable .270 and .243 Winchester which have on average muzzle velocities on or over 3,000ft/sec?
How fast is that in 'real world' terms?
In the field under normal stalking conditions (say, a shot under 200m) you really don't have the time or need to break out the rangefinder (or god forbid, Kestrel!) and work out a firing solution. If you are doing this then I would be asking questions...
So, on a 'snap-shot' you need a rifle with a trajectory and scope sighted in to work from 'point-blank' out to 300 meters or so to account for errors in range estimation. The fact that most scope reticles have the capacity for 'instant' range finding make this easier still.
Having being a big fan of dial scopes (I own three!) I would now say that for stalking in the UK they are completed unnecessary.
Why dial when you know holdovers and why hold when you know the round will impact within a three inch radius or less of the centre of the crosshair (within sensible distances)?
Chamerings such as the 6.5CM are great for range work as you can use bullets with a higher than average ballistic coefficient loaded to give you
consistent trajectory which can be dialled in to distances all the way out to the point where you would struggle to see the target with the naked eye.
Still can't believe people are being sold 6.5CM rifles to shoot Muntjac and Roe deer out of a high seat at a distance well under 100 meters... but whatever floats your boat!
However, when it comes to varmiting I would say the best of both worlds (rangefinder, dial scope, ballistic computer and flat shooting chambering) is great, but maybe not for barrel life!