Accuracy depends on the rifle. I've got a .257 Roberts that's killed probably 50 deer in its life. I've killed a couple dozen with it myself over the years. Was my grandpa's gun I inherited from him in the 60s. It shoots a 100 grain sierra at 3150 fps which is close to .25-06 factory stuff. There ain't a deer on this planet that it'll bounce off of, put it that way, and of the couple dozen I've shot only one wasn't DRT or within a few feet. I had one that went about 75 yards, 117 Hornady interlock didn't hit any bone and didn't open up. The game kings ALWAYS expand regardless of bone and I've only had one of 'em fail to penetrate, found it flatted under the skin on the off side after busting through a clavical, bouncing up into a vertebra and shattering it, and then back down through a rib. Shot was quartering toward me about 150 yards. This gun shoots 3/4 MOA, BTW. It's an old Remington 722.
I coulda bought my step dad's .25-06 cheap, Remington ADL and Redfield scope, 250 bucks. I actually won a BDL in a raffle at a gun show in .25-06. They're popular in Texas. I traded it for the M7 Stainless in .308 cause I already had a quarter bore and had the hots for this rifle and made the deal. It was a pretty gun and I'd have probably kept it, but I didn't need another quarter bore so close to my Roberts in ballistics. Had it been an 06 or .270, I'd probably still have it, but I love that little M7 and the .308 caliber.