Until Hornady created the "Leverlution" cartridge, which has a pointed PLASTIC tipped bullet, only flat tipped or round nosed bullets were used in cartridges for a tubular magazine rifle- since the base of each cartridge is resting on the nose of the following cartridge, a spitzer (pointed) bullet could cause the primer of the round ahead of it in the magazine to fire- very bad results.
Until Hornady created the "Leverlution" cartridge, which has a pointed PLASTIC tipped bullet, only flat tipped or round nosed bullets were used in cartridges for a tubular magazine rifle- since the base of each cartridge is resting on the nose of the following cartridge, a spitzer (pointed) bullet could cause the primer of the round ahead of it in the magazine to fire- very bad results.
Round nosed or flat nosed. Until Hornady created the "Leverlution" cartridge, which has a pointed PLASTIC tipped bullet, only flat tipped or round nosed bullets were used in cartridges for a tubular magazine rifle- since the base of each cartridge is resting on the nose of the following cartridge, a spitzer (pointed) bullet could cause the primer of the round ahead of it in the magazine to fire- very bad results.
None... it is the same sized bullet (.308 diameter). You have to choose the selection of bullet when reloading 30-30 ammo for the type of bullet. A pointed bullet in a tubular magazine can present a problem when the rifle recoils. The ammo is not interchangable, you must shoot the ammo that the rifle was chambered for.
For the most part, box magazine.
Yes. Not usually. Most FMJ ammo is pointed, and in tubular magazines the possibility of the point of a bullet setting off the primer of the bullet in front of it makes it unwise to load them into a tube magazine. Bullets for lever actions are usually round ended
Tubular Magazine
There were several reasons. A box magazine MAY actually hold more ammunition. They are much faster to reload (using a stripper clip- insert the clip of cartridges into the weapon, press down on top of the cartridges, withdraw stripper, close bolt). If a tube type magazine was dented, it may be impossible to reload. Finally, while a tube magazine can work for a flat tipped bullet, such as the 170 grain bullet used in the 30-30 cartridge, they can be very dangerous to use with spitzer (pointed) bullets. As the 8mm Mauser, the .303 British, and the 30-06 began to shift to the spitzer bullet, the tubular magazine fell into disfavor. With a spitzer bullet, the center fire primer of each cartridge rests on the pointy tip of the bullet behind it.
There are several types of repeating rifles, fed by different systems. Some rifle have detachable magazines, while others may have fixed magazines. Of fixed magazine rifles, you may have either a box magazine. or a tubular magazine. In any of these instances, you would load the magazine. If the rifle was fed by a detachable magazine, you would then insert the magazine into the magazine well and ensure that it was seated. Rifles with fixed box magazines, such as bolt action rifles or the SKS, will require you to open and lock the action to the rear, then feed the rounds into the magazine through the open action. Rifles with tubular magazines may have different ways of loading the magazine. Some will have a slot on the side of the receiver which cartridges are fed into to load the magazine. Some will require the end of the tubular magazine to be removed, and for the cartridges to be fed in from the front of the magazine (below the bore), after which, the cap (which often contains the magazine spring) is replaced. Some tubular magazines are fed through an opening in the bottom of the receiver (this is most common with shotguns). Some tubular magazines are inserted through the buttstock, such as on certain versions of the Remington Nylon 66. On these rifles, you would remove the tubular magazine completely from the rifle, load the cartridges into the magazine, then insert it back into the opening in the buttstock and secure the magazine.
The magazine.
Yes.
The 30-30 is a rimmed cartridge, versus the .308, which has a rimless cartridge. The 30-30 has much lower energy than the .308, and is typically loaded with a flat tipped bullet, due to the number of lever action 30-30s that had a tubular magazine. The .308 typically has a spitzer (pointed) bullet.