Had a longer reply posted but lost it.
For the most part I do not care if a scope focuses at ten yards at max power. In my area Red Squirrel provide a lot of close shot opportunities. By close I mean closer than the near zero of my PBR. But I do not take those shots anywhere near max power so the focus does not matter as much. However, I do like to practice indoors at close distances and that's where it matters most. But even then if I found a scope that only focused down to 25 yards I'd just dial down the magnification and practice with that.
But it really depends on the scope.
I have a Styrka 1-6x24 with side focus that has a very forgiving depth of field. It could be used for quick shots within the PBR. Duplex reticle so no holds for quick shots at 50 yards, unfortunately. And that is further than the PBR on any of my current PCPs. With that scope one could start their hunt by setting the focus on 6x at the max distance of their PBR and leave it there for the day. Just adjust magnification as needed.
My March 1-10x24 with side focus, on the other hand, has an extremely tight depth of field. Quick shots at 25 to 50 yards would not be in this scope's wheelhouse, at least in my hands. Very finicky to dial in a clear sight picture and the eye box really gets tight at higher powers. Not great in hunting positions in the woods. And mine is the longer, SFP version. The shorter FFP that Steve mentioned is probably "worse", although I haven't looked through one much less taken one into the woods.
I hadn't read your post until it was getting dark yesterday evening so I couldn't do a test then but a few minutes ago I did.
Nothing many of us already don't know but with all these subjects of parallax adjust, fixed parallax, focus and clear image, DOF, and viewing of the reticle as far as how well we see it and the holds in it, there are some "trade offs" I'll summarize at the end of my post.
Here's where I'm coming from...I haven't been behind the Styrka 1-6 so I couldn't comment on it in most ways but I do know for me I want more than a duplex reticle. Also since I've had the Athlon 1-6 I found I needed more magnification for my style of shooting. Even though it was SFP, fixed parallax, and with a great reticle for holds as well as easy to see, it didn't work for me. 6x was getting weird looking up closer though.
I hadn't tried a "side focus" 1-?x42 yet so I bought a Athlon 1-4.5. Great scope in many ways except weight and 4.5x didn't cut it either. 4.5x is low enough that the side focus is just about not needed except in the military matches it was designed for which dialing out all the parallax is an advantage.
Then I got a Burris 1-8 FFP. Really weird up close like 10-15Y above 5x. No adjustable side focus. It was really bad closer in on 8x and IQ was not that good at any distance, as well as the fish eye effect. I liked it at first but the more I used it the more a distaste grew. Good reticle and I liked the big daylight bright circle and dot.
Then I tried a Athlon Helos 1-10. No side focus and for my eyes, and also my older friends eyes, it wasn't a clear image at the diopter setting we needed for a focused reticle above 4.5x. I sent it back and it was tested but Athlon CS said the scope was fine to them, it was looked through by the oldest being 45 years old and the others younger, which I suppose is why??? They gave me credit for a 2-12x42 DMR instead which is one of my favorite all around scopes.
I traded into the March 1-10 DFP shorty I have now. As with all scopes its got its compromises. BUT, and this is a BIG BUT, it's capable of anything a scope like this could be used for and does it well.
Good for focus and dialing out parallax at any distance except maybe 5Y.
Very good glass.
Very good reticle. It's not exactly what I would prefer but close enough.
DFP/Dual Focal Plane so the hold hashes are in the FFP and the SFP part of the reticle stays big on any magnification.
Daylight bright dot and on the lowest setting of the illume isn't too bright for the darkest night. Might not work for NV but I wouldn't know??
10x is clean and clear and usable at any but Bugbuster distance. So nice when shooting long range with my AR!!! 10x is so much more usable than 8x for long range, IMHO.
So short and light its really cool, interesting too, and my AR is lighter than before with the other scopes that have been on it.
For whatever reason I am not sensitive to tighter eyeboxes at higher magnifications??? I do have an adjustable cheek piece on the gun my March sits on so this has been a non issue. Actually I've used this scope on 10x the most often and without complaint.
My test was from 1x to 10x from 10Y estimated to 50Y estimated. My judgement was how focused the image was at all magnifications, or basically an experiment in DOF, but I'll keep this short. With the parallax set to approx 25Y and from 1-4x the IQ was fine for anything inside 50Y, perfect no but not worth a hill of beans difference. Up to 8x it was only the slightest bit unfocused getting closer to 10Y but great at 50Y. 9-10x a little more unfocused(barely) up close but great at 50Y and it's still easy to hit something up close.
However I always have the option to set the side focus where ever I want. Especially if hunting squirrels this is pretty much the perfect distance to leave side focus set. Big game I'd set it at 75Y and keep it at 4-5x for walking around anticipating shots inside 100Y. Long range, or small targets, 10x baby!!!
Versatility is where its at with me. I do feel like this particular scope is worth keeping and that's saying something because it works great.
Okay its an expensive scope! It's not a perfect scope! Best I've found so far for what it is?? DEFINITELY, as far as 1-? scopes go!
Honestly that Athlon Helos G2 2-12x42 DMR is more desirable to me because of the 12x and 1/4th the cost. Though 2x to me is not the best choice for across the room type of gunfighting so one is on my 6mmFatRat AR long range rifle. And one on my Steyr ProX. That scope on the ProX is a perfect marriage!
I guess each of us see's things differently and must choose optics according to our personal priorities vs others priorities. However for me I'm not buying anymore fixed parallax 1-?'s anymore.
If I didn't want more than 6x and was ok with a duplex I'd surely give that Styrka a try, the deeper DOF would be a desirable attribute.