This is a pretty subjective thing with many devotees of this or that MILSURP for a variety of reasons. The only way to find out is to buy a bunch and try them out. A few suggestions based on my experience over a long time include the MkIII Ross, M1 Garand, M1903 Springfield, P14 Enfield, Model 1917 Enfield, Mosin-Nagant, Swedish Mauser, No1 MkIII L-E, No4 L-E, No5 L-E, M14, M98 Mauser, M1 Carbine, M1A1/M1928 Thompson, M3 Grease Gun, M1918 BAR, BREN, FN49, FN FAL, MP44, P08 Luger, P38 Walther, M1911A1 Colt, Browning HP, Colt New Service, Broomhandle Mauser, S&W M&P....and the list goes on. So many choices, so little time, and only so much money. Look for ones with a sound barrel and stock and tight sights. Handloading always brings out the best in a rifle.