As long as you like. Storing ammo at room temperature isn't going to be the issue - humidity is going to be a much more worrisome factor than the 74 degree temperature.
To avoid problems associated with humidity, store ammo in a military style ammunition (ammo) can with desiccant inside. Desiccant can be purchased at many hardware and sporting goods stores. Ammo cans can be purchased at most military surplus stores or at many gun shows.
Stored in moderate temperatures and low humidity, ammunition can be stored for decades.
As long as you wish. 75 degrees is a safe temperature to store ammo in. Low humidity makes for good conditions to store ammo in.
Embryos are typically stored in liquid nitrogen at temperatures around -196 degrees Celsius. They are usually placed in cryopreservation tanks where they are stored in special containers called cryo-vials or straws. These extreme temperatures help preserve the embryos for long periods of time while maintaining their viability.
If soup is stored in a freezer at 0 degrees F and below, it is good for 2-3 months.
It can fire .32 Smith & Wesson and .32 Smith & Wesson long ammunition. These are the only ammunition types it is designed for, and is NOT compatible with other types of .32 calibre/7.65mm ammunition.
This really depends on how long the chicken was on the counter during preparation time. My rules of thumb are typically anything can stay refrigerated for no more then five days and if it is changing colors or smell throw it out.
It depends on the type of ammunition.
uncooked in dry area approximately 1 year. cooked no longer than 3 hrs in 40 degrees to 140 degrees F
If properly stored in cool, dry conditions, modern ammo has a very long shelf life. We do not know how long, since modern day ammo dates to about WW II (1940s). I have recently shot WW II ammunition, and it works fine.
18 or 21 depending on if you are buying long gun or hand gun ammunition
No, you cannot safely shoot .38 Long Colt or .38 Special cartridges in a .38-55 Winchester lever-action rifle. The .38-55 cartridge has a larger case diameter and is designed for a different pressure level than the .38 Long Colt or .38 Special. Attempting to use the wrong ammunition could lead to dangerous malfunctions or damage to the firearm. Always use the correct caliber ammunition specified for your rifle.
No, over time this can damage the spring mechanism that pushes fresh ammunition into the chamber.