looking into getting my first centerfire boltgun. looking to really research before i go and buy as i plan to look in the $5-700 range for the rifle without glass and would really like to have something i can keepfor a while and not end up regretting once i get to be a better shot. ive been shooting alot of 200 yard .22 the last few months and thats mainly what i plan on using the gun for 2-300yd. but 600 sounds like alot of fun. so id like to have something that once i get good enough with i can now and then take somewhere that i can shoot longer distances. i was origionaly thinking .308 but since 97% of the time itll be used for shorter distance shooting .223 sounds like a smarter choice. from what ive read not as good around 600 but will still doit. id rather sacrifice a little on that end in trade for a more affordable round. doesnt matter how accurate something is if i cant afford to spend plenty of time behind the rife to get decent with it. so my main question is... is there any place i can look to find an ideal twist and barrel legnth for .223 at longer ranges or do any of you have any suggestions or input?