most C&R bolt actions are good well past 100 yards. mosin nagants and enfields have the poorest reputation for accuracy but enfields have a great, smooth action and the number 4s are very well balanced. if you can find one for under $300, a enfield number 4(the ones marked us property have a little better reputation for accuracy) or a french MAS36 would be excellent shooters. others that don't have a great repuation for accuracy but are still able to find for under $300 are Japanese arisakas type38(6.5x50mm) and type 99(7.7x58mm), the ammo is harder to find but not impossible, the 7.7 is easier to get but the 6.5 is no harder than 6.5 carcano.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
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