45/70 with 350 gr. Speer Hot Cor

Silverado

Silverado

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Speer's manual states that their 350gr. Hot Cor FP is for the 458 win mag, and can't be seated deep enough for the 45/70???????

I'm not sure I see why not. Anybody here load these? What powder and load do you use?

This is for a Marlin GG.

Thanks.
 
I am not familiar with that particular bullet but they probably are refering to the crimping groove location. Any bullet can of course be used but sometimes the groove is in the wrong location for a diff caliber gun.
I do know Marlin GG do require a short COL but I have still used the Rem 405s & just crimped ahead of the little lip instead to the crimping groove (I guess you'd have to be familiar with that particular bullet to know what I mean:rolleyes: )
 
Speer's manual doesn't say that ... it says ( the 350 gr. Hot Cor ) can not be seated "to function properly through most lever-action rifles".

If it functions properly through your levergun - great !

It's a tough bullet, designed for velocities in the 2400 fps+ range - may not open reliably when driven slower (but it will penetrate !) .

If you want to stick with a 350 grainer, try Hornady's 350 gr. Flatpoint instead.
 
Sorry Beretta boy, you're correct. That's what is says alright!

I was thinking of this as strictly a bear bullet, with as fast a load as I can safely cook up...

I've got some H4198 right now, any other powders to recommend?
 
.45-70 with 350gr Speer Hot Core

The 350gr Speer Flat-SP can be used in single shots or bolt actions fine. In most lever actions, like I found out with my Marlin GS, you have to keep the C.O.L. @ 2.550" or less. Crimping the Speer 350gr Flat SP, or hot core in the cannelure groove, you end up with a C.O.L around 2.710". You may lever it into the chamber but to get it out, you'll have to fire it. As the Speer 350gr is designed more for 458wm velocities, there are better choices for 45-70's. The 350gr Hornady FP with 56gr's of IMR 3031 has worked well for me, C.O.L 2.545". Even better yet, I like the Speer 400gr Flat-SP that I've loaded with 53gr's of IMR 3031, C.O.L. 2.540".:D The Speer 400gr is designed more for 45-70 velocities. Also, I prefer a flatter shape for tubular magazines.:)
 
400 gr. SPEER

Silverado....Read what the Speer manual says about their 400gr. bullet before you load it for bear!...a friend of mine used it on a med. sized black bear a few years ago and was disappointed in it's performance in that the did a right angle turn after hitting some bone.......:)
 
That's exactly why I thought I was being smart going with the 350.

I'm going to load some blanks to see if they cycle.
 
Silverado said:
That's exactly why I thought I was being smart going with the 350.

I'm going to load some blanks to see if they cycle.
Click to expand...

It sounds like you have some Speer 350's on hand....I have read that the cannelure is in the wrong place for these bullets to cylce thru the Marlin as others here have suggested...if you find that to be the case also you mite go to the www.marlinowners.com site and ask them in a post how you modify your Marlin to feed the longer rounds.... I know it can be done as Mic McPherson in one of his articles in the "Accurate Rifle" (I believe) did it so he could use to Speer 350 in his Marlin...He thought the Speer 350's where the cats ass for the 45-70....myself I would just use the Hornady 350's as they are a good bullet also and they feed in the Marlin (unmodified)...
 
I use bullet weight and almost exactly the same powder choices as Johnn Peterson. I load these in my 458 american, in a K98 Mauser. This cartridge is essentially a rimless 45-70. I have used heavier loads, however this cost me a wooden stock after about 100 rounds of shooting at the range.
 
Brutus said:
I use bullet weight and almost exactly the same powder choices as Johnn Peterson. I load these in my 458 american, in a K98 Mauser. This cartridge is essentially a rimless 45-70. I have used heavier loads, however this cost me a wooden stock after about 100 rounds of shooting at the range.
Click to expand...

With hot 45-70, especially with those you can 'feed' through a strong action like a Mauser '98, you're not far off of a .458mw power. To handle that potential recoil, you need the extra recoil lug protection that you see in factory productions that are built to chamber similar cartridges.
 
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