As I read this, I have two thoughts:
The first is that I find it "interesting" that while talking about the .243 as "adequate" for Red Deer in Scotland, no mention is made that in addition to the calibre, there exists alongside it also a minimum for bullet weight and energy.
Speaking of energy, that same Red Deer in Germany, and in Poland, and probably in other places I haven't been fortunate enough to hunt yet, requires a minimum of 6.5mm with an energy of 2000 Joules at 100 meters. You're .243 isn't going to make that. Curiously, my 6.5 MS doesn't make that with its normal 160 grain bullet, but will with a 140 grain. The difference in that case has less to do with the bullet weight than it does the difference between a spitzer bullet and a round nose bullet. The better ballistic coefficient allows the lighter bullet to retain its speed over the distance, so it still has the required (just barely) energy 100m out.
My second thought relates to "reloading after shooting". And this is where previous experience worked against me. I was using a rifle borrowed from my guide for boar at night, borrowed because he had a thermal sight and I did not. He also had a nice suppressor. The thing is, the pistol grip on that borrowed rifle felt an awful lot like the grip on so many of the, shall we say, "self loading" weapons I had used in the past, and much to my guide's chagrin, I neglected to work the bolt. This was partially because of the muscle memory in the grip design, and partially because I actually heard the impact of the shot. I knew the bullet went where I wanted it to go. Guide was upset because the pig was running (and it didn't help that he was instructing me in Polish), but in the time it took to "remember" the bolt, the pig made it only 30 meters or so and fell over. It all worked out in the end, and that's the last time I've forgotten to "work the bolt".
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