My idea of LR is about 600yrds. Thats plenty for shaky ol me and for Colo. I dont spend any money on custom stuff as most factories today are ISO9000+ and the quality of factory rifles is pretty darn good. Sadly rifle mfrs refuse to put 26" bbls on most stuff to keep msrp's/weight down. Fortunately I found a rancher with a Mod 70 7RemMag he needed to sell and it had factory 26" bbl. I made up for the custom work by using Hornady 139SST Hvy Mag ammo and replacing the Bushnell 3-9x40 with a Nikon 3-9x40BDC then a Bushnell 4-12x40AO. The combo worked well for me as I missed a doe at 602 yrds, the miss coming because I didnt use quite enough elev and I shot under her a few inches while using my backpack as a rest. That wasnt the gun's fault. That was me.
The local range shoots 1300yrds so I may go try that one day soon to see how it works out. I guess I need to get a foto of my low buck rig and post it (???) or link it here. My key thing is flexibility, the doe I did shoot was 87yrds(after missing one a few mins earlier at 87yrds), so I want to be able to go from 50yrds to 600 pretty easy. The mulie place I hunt is a sort of a pick the one you want place(on public land).
I figure if the gun cant do it then I can adjust for that with quality optics and ammo(well 32.50 a box is a bit much).
My main thing is flat, over the counter, and 26" bbl. I want any rifle I have to shoot flat, so if I miss it's my fault. I began hunting big game in PA in 1966 with a 264WinMag with 3-9x40 and cant seem to get far from a similar combo. Faulty programmming I guess.