I find the the small chainsaws that use your 18 volt power tool batteries do a fair job for camping wood up to about 150 mm, and have the added bonus of virtually no noise.
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In life it is important to know when to stop arguing with people
and simply let them be wrong.
I agree with Landy.
MY little Ozito battery unit does a good job.
I hit the fallen limbs at my volunteer working days at my bush golf club and cart the matured stuff away with me on my camping trips.
This week there was a fallen Ironbark limb and the wood coming of it is first class. My little saw hits it at more than 150mm effectively.
I find the free Bunnings boxes are useful to stack my campfire wood in when I travel away.
Usually stack what I cut in the bush at the golf club and let it mature for a few years in my back paddock, then cut to size and take some with me.
In terms of wildlife, they have plenty of spots left for them critters.
Have been playing with a small (2 foot) Red Belly I spotted last week who gets out in the same spot every day.
Has been a mild winter this year in our region and he has been out everytime I wander past his hideout.
Have been told Red Belly Black snakes will get out in the cold as opposed to other snakes.
He is quite tame at the moment, poked him with a golf stick today, having a bit of fun with him, but he might fire up a bit when it gets warmer.