i have a stevens 200 in .308 and been taking it to the range on once a week, i shoot about 80-100 shots each trip, this is in the spand of 4-5 hours. i usually do 5 shot in a few mins then let the barrel cool. i also do a thorough cleaning after every trip though. am i too hard on teh barrel? i don;t want to have to change it after 6 months
.308 is quite easy on barrels, typically, and you should expect several thousand rounds through the pipe before you see any degradation in shooting quality.
Also, the attitude you've got is kinda silly, and I'm sure you'll agree when you think about it.
If you were a golfer, spending alot of time on the driving range, and getting really good at your drive, would you be worried about how your practice affected your golf club? Nope, you'd be happy with progress you made, right?
The same goes for your gun barrel, if you burn through it and have to replace it after awhile, so what? The amount of money you'll have spent on ammunition and range time dwarfs the replacement cost of a new barrel (less than 200 for a factory tube, 500 or so for a nice match tube), and if you're practicing properly, the real result isn't empty brass and worn out gun barrels.
The result you'll have is genuine skill at the best and most modern of martial arts.... shooting.So... try to look at the equipment as disposable, the real work in progress is you. We have enough gun collectors on here, we need more shooters.