***We know from history that 45-70 loads of this power level literally pounded 2,000+ lb. bison. As bullet diameter increases, velocity and bullet expansion is less important in causing the bullet to be lethal to large animals, and a 46 caliber, (.458 inch) non-expanding bullet is very big, relatively, so this low pressure/low velocity 45-70 ammo is very lethal to big critters. Shooting most types of smokeless powders at low pressures causes dirtier burning as well, but still, smokeless powders burning dirty at low pressures are about 95% cleaner than black powder and smokeless powders remain non-corrosive, unlike black powder, which is very corrosive. Remember, these loads feature smokeless, completely non-corrosive powder. An added benefit to these BPE loads is that they recoil very little relative to high pressure/high power 45-70 ammo. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

Though it was originally loaded with black powder and introduced in the 1870s, the .45-70 Government is still a relevant and heavy hitting rifle cartridge. In fact, due to advances in powder and bullet technology, the .45-70 ammo is now even more effective for hunting than it ever has been. Known for its bone crushing power and excellent terminal performance on virtually every species of North American big game at short to medium range, hunters all over the United States still utilize the .45-70 for deer hunting in thick conditions and it’s also quite effective on black bear, feral hogs, moose, and grizzly bears

The folks at Buffalo Bore only recommend using this ammo in the following rifles:Marlin 1895 (1895 Marlins are all model 336 actions, chambered in 45-70) iterations made since 1972, all Browning 1885 and 1886, Rossi Rio Grande, New England Arms Handi Rifle, T/C Encore, Shiloh, Christian and Pedersoli Sharps.

• Bullet Type: Jacketed Hollow Point (JHP) or Jacketed Flat Nose (JFN)

• Bullet Weight: 300 grains or 405 grains

• Muzzle Velocity: 2,350 feet per second (300gr JHP) or 2,000 feet per second (405gr JFN)

The folks at Buffalo Bore only recommend using this ammo in the following rifles:

Marlin 1895 (1895 Marlins are all model 336 actions, chambered in 45-70) iterations made since 1972, all Browning 1885 and 1886, Rossi Rio Grande, New England Arms Handi Rifle, T/C Encore, Shiloh, Christian and Pedersoli Sharps.

• Bullet Type: Jacketed Hollow Point (JHP) or Jacketed Flat Nose (JFN)

• Bullet Weight: 300 grains or 405 grains

• Muzzle Velocity: 2,350 feet per second (300gr JHP) or 2,000 feet per second (405gr JFN)

• Loaded with authentic black powder, Black Dawge ammunition is specially designed for clean and accurate shooting and is perfect for hunting or competition. The bullets are cast from a special soft alloy and pre-lubed with SPG Lube. This ammunition is new production, in boxer primed, reloadable brass cases. 
  
  Caliber: 45-70 Government Bullet Weight: 405 Grains Bullet Style: Lead Flat Nose Case Type: Brass

• ​

• 1885 BPCR BROWNING 45/70 FIREARM, SINGLE SHOT, LEVER.

• SPECIAL VERSION THAT CAN SHOOT BLACK POWDER CARTRIDGES,. PYRODEX & SMOKELESS CARTRIDGES IN 

• THE 45/70. 

• PLEASE REMEMBER WHEN NOT SHOOTING SMOKELESS AMMO, CARE MUST BE MADE WHEN SHOOTING BLACK

• POWDER (or pyrodex). However the new black powder cartridges today are mostly smokeless.

• Browning BPCRs:

• It's rare these days to come across an unfired Browning BPCR since 
  the factory sold all the remaining inventory in early 2001, so most 
  of the Browning's will be clearly described as used.

• THIS ONE HAS NEVER BEEN FIRED.

All the Browning and Winchester BPCRs with Badger barrels are 

identical concerning the source and the material used.  All the 
barrels are made from high quality SAE 4150 chromemoly steel.  
The Browning .45-70 rifle barrels are marked RECOMMENDED FOR 
BLACK POWDER.  The .40-65, .45-90 and .50-90 rifle barrels are 
marked …BLACK POWDER ONLY.  Browning’s Owner’s Manual clearly 
states that the .45-70 can also accept the pressures of 
commercially loaded smokeless ammunition with jacketed bullets.  
Therefore it’s clearly OK to shoot smokeless ammo in the .45-70 
BPCR.

Browning proof-tested the Badger barrels prior to selecting the final 
barrel supplier.  During the test, pressures were increase to a level 
sufficient to liquefy the brass and drive it into the extractor slot.  
The brass was cleaned out and the testing continued without barrel 
failure.  Based on the test results, “calculated” failure pressures 
were well above any range expected to be reached with 
commercial smokeless ammo.

It’s certainly your call, 
but personally I would have no concerns about shooting 
commercially loaded smokeless ammo in one of my Browning or 
Winchester Badger barreled BPCRs.TexasMac   $1995.00 OBO