.22 WMR 50 gr

Bog Trotter99

Feisar wrote: »

He was trying to make cartridge for those that didn't like the inherent accuracy of the 22LR:pac::pac::pac:

Or he knew that just over 40 years later there was going to be a .17hmr...... sorry a 'shoot flatter' .17hmr.:p

minktrapper

Just gave a look at the Cartridges of the World book. There was a .22 Extra Long. Introduced around 1880. Now obsolete. It used the same outside lubricated 40gr bullet that was later adopted to the .22Long Rifle. More powerful than the LR but not but not noted for accuracy. Loaded with black powder. All of 6 grains. Was advertised as a 200yds target cartridge. But would not qualify by today's standards.
Any rifle chambered for it could load and fire a Short,Long or Long Rifle. Not suitable for high or hyper velocity cartridges as the chamber might not be strong enough.

Bog Trotter99

minktrapper wrote: »

Just gave a look at the Cartridges of the World book. There was a .22 Extra Long. Introduced around 1880. Now obsolete. It used the same outside lubricated 40gr bullet that was later adopted to the .22Long Rifle. More powerful than the LR but not but not noted for accuracy. Loaded with black powder. All of 6 grains. Was advertised as a 200yds target cartridge. But would not qualify by today's standards.
Any rifle chambered for it could load and fire a Short,Long or Long Rifle. Not suitable for high or hyper velocity cartridges as the chamber might not be strong enough.

There you go a possible reason.

There is a whole lot of science goes into a bullet and suitable gun.

The weight of the bullet can affect the amount of pressure that builds up as it is fired. The twist has to be correct for the speed and weight of the bullet.

minktrapper

At 140yds there is a 40lb difference in energy between the 30gr and the 50gr. Which is considerable in my opinion.

Uinseann_16

Bog Trotter99 wrote: »

I don't know if it was true or an accident, but if you think about it, the job could be done on some rifles with a hand drill and then you have a higher pressure charge and a bullet travelling almost twice as fast in possibly the wrong twist barrel?

I dunno but why in 1959 didn't the fella who designed this just make it for what had been around for nearly 80 years already? It could have been the exact same size with just a touch longer case for the extra charge. Then the new .22wmr rifles could have fired all kinds of .22 ammo, hv and subs by using the same case.

There must have been some reason.

Like Feisar said it's not a heeled bullet like the 22lr it sits in the straight wall case like a .38 ,45-70 etc
Also for the thickness of the brass pick up a .22lr case and a .22 magnum case they're thicker brass make the brass that thick on a 22lr you lose case volume
Though they could've just made it a little larger to make up for that ....
Could be to do with getting a more positive extraction on the larger rim

Uinseann_16

minktrapper wrote: »

Just gave a look at the Cartridges of the World book. There was a .22 Extra Long. Introduced around 1880. Now obsolete. It used the same outside lubricated 40gr bullet that was later adopted to the .22Long Rifle. More powerful than the LR but not but not noted for accuracy. Loaded with black powder. All of 6 grains. Was advertised as a 200yds target cartridge. But would not qualify by today's standards.
Any rifle chambered for it could load and fire a Short,Long or Long Rifle. Not suitable for high or hyper velocity cartridges as the chamber might not be strong enough.

Actually the .22lr extra long is still made although with a 32grain bullet instead of 40 to fit in standard chambers
The casing on a CCI stinger or segmented hollow point is not a long rifle case it's a "Extra long" case

Feisar