I added to bmcgilvray's list, but I have about a half dozen more than this list.

I can assemble ammunition to feed guns chambered in:

.22 Hornet, also 22 K hornet, 2R Lovel, and 218 Bee
.223, also 222 Rem, 222Rem R, 222Rem mag, and 221 fireball
.22-250, also 22 BR
.220 Swift, 22 Savage HP
6mmPPC, 6x 284Win, 243 Win and 244 Rem
6.5x54 MS, 6.5 Carcano, 6.5 Jap., 6.5 x 267 Roberts and 264 Win Mag
.270 Winchester x also 280 Rem
7X57, also 7x57 improved, 7x57R and 7mm Rem Mag
.30 Carbine, 30-30, 30 Remington, 300 Savage, and 30-40 US
.308 Winchester, 260 Win, 7-08 and 358 win
.30-06, 300 Win Mag, 300 H&H Mag, 300 Weath Mag
7.62X39, 7.62x45 Rumanian, 7.62X54R & 8mmx 56 Hungarian
.303 British, 7,7 Jap., and 7.63 Argentine
.32 ACP, 32 S&W Long, 32 S&W and 32 H&R mag
.32-20 WCF, 32-20 Marlin, 338 Win Mag and 338 Lapua Mag
.32 Winchester Special, 8x57 Mauser, 8x57R and 8mm x 56 MS
.351 Winchester Self Loading and 357 Legend
.380 ACP also 9mm Mak and 9x18 Ultra
9mm Luger, 9mm Glenseti
9mm Steyr also 9mm Largo .38 Super 9X23 and 9mm Win Mag
.38 Long Colt also Short Colt
.38 S&W, 38 Special, 357 Magnum also 357 Maximum
.375 H&H Magnum x also 375 Win & 38-55
.38-40 WCF also 44-40
.40 S&W, 10mm, and 10mm Mag
.41 Magnum, 41 Special and 401 Power Mag
348 Win, 43 Reformado, and 43 Spanish
.44 Special, 44 Evans, 44 Evans Extra long and 44 Russian
.44 Magnum, 445 Mag and 444Marlin
.45 ACP and Auto Rim
.45 Colt, 45 S&W Scofield, 45 US, 45 Colt shotshell, and 45 Win Mag
.455 Webley and 476 Enfield
.455 Self Loading and .455 Colt Auto
.45-60, 45-70, 45-90 also 45-100, 45-110, & 45-120, 450- 3 1/4 N.E., 458
Win Mag, and 458 Lott
50-50 Carbine and 50-70 Govt.
12 gauge x also 20 gauge, 28 gauge, & 410 bore 2.5 & 3"

Ivan