I've got two myself. One in .223 and the other in .308. Now while I *can* see, quite easily since I, too, reload, where one would have a few `problems' with the BOSS. But, it need not be so. What I have done has been to pick several extremely `notably' accurate `commercial' loads and set the BOSS for them. Then depending upon the load I may want to `work up' I will set the BOSS for one of the `commercial' ones that would effectively be the closest to what I was `aiming for'. (Kinda nice having a `baseline'.) After I had `worked up' a load I liked I would then `play' with the BOSS and then record what I came up with for using in a similar fashion to the `commercial' loads. (Given just how many times one can `discover' a new bullet, powder, or whatever it kinda makes sense to be able to such `baselines' and any `extra' that helps in even the tinest bit is always appreciated on theis end. [And... Yep! I also have a couple `ballistics' programs I use quite a bit and am trying to decide between upgrading my Shooting Chrony BETA Master or getting an new Oehler with the `proof channel'. {WAN GRIN!}])
As for just what price to pay for an `experienced' one... I bought both of mine for just a tad over $600 NIB and haven't ever considered selling either one and so haven't `researched' a `used' price. Given how *I* feel, the condition of *my* A-bolts, *and* the `hysteria?' of the `market' these days *I* *wouldn't* consider letting go of either of mine for less than $650 and would prefer to be a lot closer to $700. But then again... That is just *my* `feelings' about the whole `affair'. {WAN GRIN!} Having said that... From what I can tell, here way off in the distance, if it is in excellent condition physically, you just *possibly* find the bolt to seem to have a bit of `tightness' to it, and everything else `clicks' then someplace between $600 and $650 may be `valid'. Though it still `feels' a bit too high for an `experienced' rifle. There'd have to be some pretty `good vibes' about it for me.
I *do* know that it will definitely make all those hours of drudgery it takes to keep the local `varmints' under control a *lot* more `fun'. Also... When you can `take out' a *golf ball* at 100 and 200 yards... Whoopee!!!! (I've got one sitting right here on the desk that I `took out' at 200yds with my .223 and some Blackhills ammo. [Has the SPEER 52gr BTHP w/canvernous maw for the HP and is the same that I've used for a couple other loads I've made.] Nice *little* round hole at the entrance and a `Don't look Ethel!' gaping hole for the exit. Not too shabby for what some would call a `bone stock' `out of the box' rifle!) I think you'll enjoy shooting it. Oops! Almost forgot... *MAKE CERTAIN TO WEAR HEARING PROTECTION!* If it has the muzzle brake version of the BOSS it *will* be *loud*! And... Amzingly enough pretty danged quiet `down range'!