The .45 caliber bullet is not used in a sniper rifle.
Depends on the Thompson. If you mean the Thompson submachine gun, yes, they were made in caliber .45 ACP (and other calibers as well). However, there are other Thompsons. I have a Thompson Center muzzleloading rifle that is .50 caliber.
100-400 USD
Benjamin (Owned by Crosman) has a new Benjamin Rogue it is a .357 caliber. At present it will be the largest Pellet rifle made with the Benjamin name. Yes it is a hunting rifle. The next largest Benjamin rifle is the Benjamin Marauder .25 caliber. Sam Yang make a 50 caliber and a 44 caliber hunting air rifle.
We can't really answer that until we know WHICH 45 and which 50. In the case of a muzzleloading black powder rifle, the .50 with have more energy, all other things being equal. However, it could also compare a 50 muzzleloader to a .45-70 cartridge rifle, which is more powerful. Caliber alone only tells us the width of the bullet.
Shiloh Sharps caliber 45-110. Nice rifle, huh?
Impossible to answer without the sn and maker.
No. the AK-47 assault rifle is chambered for the 7.62x39mm round, which is equal to the .30 caliber. The .45 caliber is simply too large for the AK-47's bore, not to mention it is a pistol cartridge, which has a completely different design than a rifle cartridge.
Unknown.
Stevens.
Remington
45-80 dollars,depending on the overall condition of your rifle.