Most of them are museum pieces, or exceptionally well-preserved specimens of their era. It doesn't mean I haven't shot them, but I'll wager the NRA museum doesn't have many of them.
Just a quick list gives:
1895 Dutch Mannlicher Cavalry Carbine in 6.5x53R
1895 Dutch Mannlicher Engineer's Carbine in 6.5x53R
1911 Schmidt-Rubin Infantry rifle in basically as-issued condition.
1942 AG-42B Ljungman in 6.5x55 Swedish Mauser
1942 Springfield M1 Garand Navy Trophy rifle w/markings
1944 Remington 1903A4 sniper complete restoration
Low-number Springfield 1903 NRA target model as used in competition
1954 Czech VZ-52 SHE in 7.62x45 Czech
1917 Enfield Lock NoIMkIII* SMLE in as-issued condition
1961 Remington 521T
1906 Remington Model 8 full restoration with Lyman #2 rear sight
1948 Remington Model 81, full restoration with Lyman Alaskan and Stith mounts
1941 Lend-Lease S&W Model 1905 Hand Ejector (pre-Victory) rebuilt as PPC/Steel Challenge revolver
1984 IMI Desert Eagle in .357 Magnum, low serial number
Stainless Wichita Silhouette Pistol in 7mm Rimmed International
1961 S&W Model 52 no-dash in .38 wadcutter
S&W Model 606 no-dash in .44 Special
1918 DWM Luger, 9mm w/VOPO markings
1912 Steyr-Hahn in 9mm Steyr
And many, many more. They may even get my 6.5-06 Interdiction Rifle, the golf ball it centerpunched at 500 meters, and the copy of Tactical Shooter that discussed the event. Depends on the size of my coffin, I guess.