Who here uses, or has used a .243 to look a deer?

Let’s assume a 90-100 grain load, recognizing that those are the most common loads for most hunters. And we’re talking about SC deer that run from 100-150 lbs, for the most part.

What is the longest range you have, or would, comfortably use as an ethical DRT limit? For the sake of this discussion we can go +/- 50 yds for ‘DRT’, but none of this ‘I needed a tracking dog to finally find it’.

Chuck Hawks claims the maximum killing range of the .243 runs from 180-275 yds, depending on the bullet. He is also using a minimum of 1300 ft lbs as the kill energy required, although other sources drop that minimum as low as 800 ft lbs.

I have never used my .243 for deer, but for some odd reason(s) it has become my long-range rifle along with my 30-30, which is why I’m checking on it.

Do what is realistic?