Roo farmer wrote:Thanks for the suggestions.
I'm shooting for commercial sale and therefore shoulder shots are not acceptable. It is probably better to miss over the top at mid range than have a low shot further out.
100 metre zero would help for short to mid range but then I would have to judge aiming high at longer distance.
At a guess I'm shooting out to about 200 metres. The old Landcruiser odometer is not particularly accurate for small distances and is probably only give or take 50 metres.
22-250 and 243 are obviously flatter, but they are quite a bit more expensive to run with reload components and barrel life. They are also louder which scares the roos more.
I'm trying the judging half the distance trick, haven't quite got it yet but I'll keep persevering.
Even if I did have a rangefinder, there would not often be time to use it. I already use the fenceposts spacing a bit sometimes, but that's only really useful if you know the spacing - Four spaces..... 40 metres each..... 160 metres..... Hang on, maybe they were at 50 metres on this fence..... 200 metres..... Or were they 35..... 140 metres..... 200 metres or 140 metres..... Hang on, the roo has gone now so it doesn't matter.....
The best thing you can do is set up some targets at 50, 100, 200 and say 250-300m and send some lead down range and see exactly where they are landing that way you will be able to adjust your holdover when needed or buy a cal that's flat shooting out to those ranges and reduce the need to over think it.
From memory I think I had to holdover around 4in or there abouts for the 222 at 200m, I just lined up the tops of their ears and that was good enough for head shots from memory (been a while since I had to think about it) but it was something like that from memory, all depends on the zero I guess or get a scope with setable turrets that can be quickly adjusted to the distances you are shooting at.