Of course, it also happens to me when riding the BMW F650 and not the Ducati Monster .... and sometimes the other way round.
I have a few where I was tracking wounded game and I had to take a "daring" or rather an optimistic shot and sometimes two or three where a flat shooter would have been better. On follow ups or so , or when I am guiding myself I mostly carry my .375Ruger or a 416 Rigby, which covers me for most situations.
I myself, while hunting for myself had screwed up, like most hunters often do, where another caliber would have maybe been better. I recall four Blesbuck hunts of which one I would most certainly like to forget. I never recovered that doe! But, then I have also shot two Kudu bulls, unintentionally with a single shot on two occasions with the 30-30, except on the second there was a third bull too who committed suicide. A bonus.
On culling operations there have been times when I wished I had another rifle and there have also been times when I would have preferred my lever action, especially when a number of antelope race past and a few shots are needed in quick succession. O yes, I remember an optimistic shot on a Springbok during a culling operation that was a poor attempt and also not something I can be proud of. As far as I know this buck was also never recovered. A 270 Win would have been ideal.
When I hunt with the 30-30 I do so for mostly myself or the family and for the pot. Make no mistake if a trophy situation comes along I wont hesitate. But for harvesting for use, the 30-30 is a good caliber. Patience is needed and it does requires a different style of hunting from when using a "long ranger".
However, I doubt whether caliber will make a bad shot or bad judgement good. I have guided hunts where hunters mess up with NE doubles and a tracker with a 7x57 solves the problem. I shot my first Kudu with a Hornet (I was 8 , nearly 9), the shot was good, that's all.
Good Lord I am rambling ... yup, there have been times, but also the other way round.... just don't take the shot unless you are sure. If things then go haywire, well , these things happen out there. Would something "meaner" have changed the outcome? Making a mistake in our hunting field also costs you money, big money if your hunting big so being careful is sound advice.
Also, if hunting for the meat, some of the rifles out there, and I include the 30-06, .243W, 300 WinMag and many others really do cause excessive damage to good usable protein. Other requirements for hunting is often neglected and attempts are made to cover it up with more "powerful" calibers. To name a few, practice with your rifle, fitness, know your terrain and quarry & practise patience...... :hmmmm:
Good grief, we should share a bottle over this matter sometime! :elefant: