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.45-70 Grizz Defense

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Apparently the 45-70 isn't enough gun for Cape Buffalo… nobody told him… I don't handload for my 45-70. I shoot Garret Cartridges +P 540 super hard cast loads… I trust it would do the trick
Having hunted Cape Buffalo…they are "totally" unpredictable…..I'd personally go bigger then 45-70…

 
I have not shot, nor killed, any U. arctos. I am a student of the bullet.
Hunting and defensive-against-toothy/clawed bullets have different requirements. Ditto shot placement.
Defensive bullets need to break enough bone or disrupt enough nerve activity to stop said toothy/clawed critter from injuring you. Straight line bullet travel and deep penetration are helpful for that. Almost any brain hit will suffice. Broken spine helps. Broken neck helps. Blood trail does not help. Bloodshot meat does not help. Holes in bloody organs do not help right away. From everything I have read, you will want instant results. Best to use a non-deforming, or mostly so, bullet. Cast is where I go. No need for crazy hard alloys like lino or stereotype. A heat treated wheel weight will probably be more than hard enough. My air cooled wheel weight 45/70 bullets don't deform much at 15-1800 unless they hit large rocks and they are way softer than buffalo bore's or garrett's bullets.
 
Has the metal on your Marlin been Cerakote or similar? I like the look of that. Might need to do mine...
Lee Hadaway (the Arms Arm Trinidad) did a bunch of work on that one including the coating… I think he uses KG instead of ceracoat… it's held up really well. He also did a breakdown for me that I absolutely love.
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+1 for KG Gunkote. When I de-burred my new ( 10 years ago) 1895 Big Loop I had shiny spots all over it. A friend was set up to use KG Gunkote. He did an excellent job and the stuff is tough as nails.
 
Having hunted Cape Buffalo…they are "totally" unpredictable…..I'd personally go bigger then 45-70…


I have a 375 H&H, 404 Jeff & 416 Rigby but just wanted to do a classic American firearm… I was well backed up but was pretty impressed with its performance… if you buy into the Taylor formula (which for this cartridges is appropriate) the 540 grain +p load falls between the 400grn 404 Jeff and the 400 416 Rigby… 375 H&H is well below.. I think most of the hype against 45-70 isn't considering modern actions and +p loadings… I wouldn't hesitate to do it again… now back to topic
 
IMO a good stout load with 405 gr hard cast bullets should be all you need. That being said, if your rifle can handle a heavier slug, go for it. The more impact force and penetration the better. You'll likely only get one shot unless you knock him down and decides he isn't dead yet.
Luckily there will be 3 of us hunting together all packing so I guess as long as I trip one of them I'll be good to get a few rounds off🤣
 
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