[U S Army EOD]

I would want something more powerful than just a 45/70, you are talking 1870 technology.

[Army Air Corps]

A SAW would do nicely.

[fuente]

took my first bear with a Marlin 895 45-70 lever action. Steel sites, 85 yds. Dropped like a sack of tatters. I prefer it to my BAR in 338 (which is great for Elk)

[Drammach]

I would want something more powerful than just a 45/70, you are talking 1870 technology.

Nonsense..
The 45/70 is quite suitable for grizzly or Alaskan brown..
The only precaution I would consider is using the commonly available "light" loads..
( I wouldn't have one (a rifle) that couldn't handle a full load...)

Comparably, it would be (nearly) as effective as a .50 cal sniper rifle.

Talk about 1870 technology, remember that the 45/70 was used to kill BISON..
And that the .50 cal rifle is ALSO 1870 technology.. developed for the same purpose..

[judywillow]

I would want something more powerful than just a 45/70, you are talking 1870 technology.

Not in the slightest. The modern Marlin 45/70 is America's most lethal gun, more capable of killing large animals quickly than anything else on the planet including any of the large magnums.

Try this for instance.