Re: Spotting Scopes Angled or Straight?
Go to SWFA and look at their various scopes. Some had reticles, I can't recall which.
I taught SDM's and other advanced marksmanship courses in the army. We worked with our snipers too (this was an experimental school set up by our Bde., one of the first two Stryker units.) Anyway, we'd team up SDM's, a shooter and a spotter.
We had mostly Kowa scopes (60x?) with the angled viewpiece. If I'm not mistaken, you can change the viewpiece from angled to straight on some brands, not sure which. The viewpieces aren't cheap though. I've also seen ones that have a quick viewfinder to put the scope on the objective first, then you look through the eyepiece. Mostly on telescopes though, but I'm sure if you look you'll find one like that. Depends on what you want to spend though.
We also had some Bushnell rubber 40x's with straight viewpieces. Those were nowhere near as nice as the Kowas for a number of reasons, and actually spotting trace was quite difficult comparatively. And 40x at distance isn't enough to determine hits on targets at long ranges, depending.
Now for general range use, you can't beat the angled viewpiece. You can get one of those long poles on a flat tripod and use it anywhere from prone to sitting to standing. Those Kowas were REALLY nice scopes for spotting trace on 5.56 on 1000m ranges.
Were I going to carry one into a fight, I'd probably go with something like that Mk4, an offset or straight. Something smaller at any rate, and without giving up high magnification... I can't envision packing a huge Kowa plus all the other junk in the field, and if they gave me a Bushnell, well, I ain't packing that around either for different reasons.
So really, three different scopes for three different folks. A straight body, an angled one, and an offset one. The angled one works the absolute best at the range of them all, from personal experience and from what I was told by all the students that had to use them. A tall mount works great. I think we used the TSN82SV and the 20-60x eyepiece. Looking at $1500 including a mount, etc., but it is NICE.
For the field, yeah, I'd go offset or straight, mainly because of size, weight and speed on target.