Impossible to answer without the model and maker name
There are many handgun rounds that exceed the 44 mag. 454, 460, 500 to name a few.
Magazine capacity varied from one model (and caliber) to another. Typically between 20 and 40 rounds.
As many as you want - assuming you reload. The barrel may well suffer a bit after about 2,000 rounds but it will continue to fire for many more thousands after that. A standard magazine of 10mm rounds carries 15 rounds but that can be lowered as an "optional" extra to 10 rounds - if you want to.
If you're referring to the 20mm rotary barrel cannon, 500 rounds. If you're referring to the MAC-10 knockoff, 32 rounds.
It depends on the make and model of .25 caliber handgun, but, generally the magazine would hold at least 5 rounds with one in the chamber for a total of 6 rounds. The correct terms for "bullets" are "rounds" or "cartridges", a bullet is the projectile that exits the firearm.
@ 750 rounds per second per barrel
25 - 30 rounds for 2 minutes then let the barrel cool 2 minutes. 15 rounds per minute as long as you can stand it.
Depends on the barrel length. Normally 7.
The value depends on condition of the rifle and the model. IE scratches and dents in the stock etc... also how many rounds have been shot through the barrel. If your below 300 rounds there is still some barrel life left. Guessing you have an average model 70 no bull barrel or Coyote model 70 without a scope 400.00 to 500.00 if in great condition. However when ever I buy a used rifle that can shoot in the 3000 fps range I bore scope it first to see if there is barrel life left.
depends if you properly broke the barrel ln, and how many rounds you put through it with proper cool down. magnum cartridges such as the 7mm and 300 win mag will start to break down the rifling in the barrel after 1500 rounds slowly decreasing the minute of angle accuracy you bought it with. but if it is in mint condition i would expect 550 dollars
The SKS rifle can generally handle several rounds fired consecutively, typically around 20 to 30, before the barrel becomes noticeably hot. However, this can vary based on factors such as ammunition type, firing rate, and environmental conditions. It's advisable to allow the barrel to cool down to prevent overheating and potential accuracy issues. Always monitor the temperature to ensure safe operation.