Home » Large Bore Rifle » 45-70 Government » Grizzly Cartridge Co. Big Bore Hunting, .45-70 Gov’t +P, JHP, 300 Grain

Grizzly Cartridge Co. Big Bore Hunting, .45-70 Gov’t +P, JHP, 300 Grain

3

Ammo Reports Team 11 45-70 Government

$69.34 $72.99

Best deal at: The Sportsman's Guide

Buy It Now

Grizzly Cartridge Co. Big Bore Hunting, .45-70 Gov’t +P, JHP, 300 Grain

$69.34 $72.99

Buy this item

SaveSavedRemoved 0

Data is based on official manufacturer sources. Found an error? Send us the source link.

Grizzly Cartridge Co. Big Bore Hunting, .45-70 Gov't +P, JHP, 300 Grain, 20 Rounds

Check price at store

Sportsmansguide.com

Ballistics Table – 100-Yard Zero

Official muzzle data only. The manufacturer does not publish a SKU-specific ballistic coefficient or downrange table. To avoid guessing, the requested 25-yard rows through 300 yards are shown as Not calculated. The 100-yard zero is identified, but no trajectory is fabricated. No wind column is shown.

Key takeaway: This table is a trajectory reference under the stated conditions, not a terminal-performance test or a recommended maximum hunting range.

The +P Designation and What It Means for .45-70 Gov’t

Grizzly identifies GC45/70+P2 as a +P load. Its exact chamber-pressure figure was not verified; the former approximate CUP figures must not be treated as this product specification. Use only in firearms explicitly approved for the exact load.

The manufacturer publishes 2,400 fps and 3,837 ft-lbs for the 300 gr JHP item. Bullet construction and advertised velocity do not substitute for the firearm-specific compatibility instructions.

Best Uses

Good fit:

• Black bear and feral hog hunting at woods distances (inside 150 yards)
• Elk and large deer hunting in dense cover where shots rarely exceed 100 yards
• Lever-action rifle users carrying Marlin 1895 or equivalent modern strong-action platforms rated for +P
• Hunters who prefer a controlled-expansion JHP over a bonded or monolithic bullet for maximum energy transfer on medium-to-large game
• Field carry where a heavy, hard-hitting round is prioritized over flat trajectory

Not the right tool for:

• Antique or reproduction single-shot rifles rated to original black powder or trapdoor pressures — +P is unsafe in these actions
• Long-range hunting scenarios beyond 150–200 yards where trajectory becomes a significant factor
• Dangerous game situations where deep, straight-line penetration through heavy bone is the primary requirement — a bonded or solid bullet may be more appropriate
• Budget-sensitive buyers who shoot high volumes for practice, given its premium per-round cost
• Handgun or pistol-caliber carbine use — this is a rifle cartridge

Reliability Notes

No structured submissions yet.

Grizzly lists 2,400 fps and 3,837 ft-lbs for GC45/70+P2. No verified official BC or downrange chart was found, so the previous 1,880 fps estimate and guessed-BC trajectory have been removed. The +P label is not blanket approval for every modern rifle. No structured, load-specific reliability test is presented here. Component details or general reputation should not be treated as proof of feeding, accuracy or absence of defects.

Competitors

FAQ