to properly answer this question i'd have to know your definition of a "True Sniper Rifle". to some of us "sniper" better describes the well trained weilder of the weapon than the weapon itself, and the criteria of what makes a "sniper rifle" has changed over the years. sorry i'll stop there, I understand how the phrase is understood in the shooting public, even though i disagree with some of that definition.
I don't own and have never owned a "Sniper Rifle", but like plinky i've owned "target rifles" that, with a little work (a more rugged stock) could have been pressed into that duty. what i have owned is Two Savages, a 110FP and a 12FV both were in .223, the 110FP with worked up handloads was nigh on a laser out to about 300yrds had numerous 1" center to center groups at 300, with the load it liked it'd make bugholes at 100 and i loved it. unfortunately i was forced to choose between continuing to own it and eating one month... few years later i bought the 12FV, have to say i wasn't as pleased with it, in the 2 years i kept it i never found a load it really liked. Both of those savages had one problem the stocks were a little too flexible.
while i can see the utility of a SA rifle for sniper duty in certain enviroments, such as the current mostly urban engagements our troops are facing. I like others buy my guns with a heavy bias toward most bang for my buck. And for the aproximate cost of a semi-auto rifle that can "probably" perform to the level I want from a target rifle (ex. AR-10 Super SASS from armalite), i could
A. be most of the way to a Surgeon
Laser F-class or
Scalpel tactical rifle either of which is one of my dream guns at the moment.
B. buy
2 savage F-T/R rifles and scope them fairly well
C. start with a remington or savage base gun/action and build a rifle that shoots better than me by a considerable margin, scope it appropriately, and have money left for my next purchase.
In addition to all this i just flat like bolt actions better than Semi-autos. Don't know if anyone else is this way but, when i shoot a bolt gun i feel it causes me to be a little more deliberate and meticulous in taking my shots. I think my way through my string, i'm somehow calmer, to be honest i'm just more comfortable behind a bolt gun. with a semi it's like there's this little devil next to my ear saying "it's already reloaded, quick! line the sights back up and let the next one off, come on you can be done with this, FASTER FASTER!!" well not quite that bad. but i DO find the short forced pause of working the bolt to be helpful to me.