Author Topic: 45-70 handi pressure limits?  (Read 1583 times)

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Offline Gallahad

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45-70 handi pressure limits?
« on: May 16, 2010, 06:58:32 PM »
Just looking at my load data, and hornady gives marlin loads 40000 cup, and ruger loads 50000 cup. where is the limit for the handi? Its been a long time since I shot a 45-70, how bad is the recoil of a 300 gr at @ 2200 fps compared to a 444 250gr. at @2200 fps?

Offline Dances with Geoducks

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Re: 45-70 handi pressure limits?
« Reply #1 on: May 16, 2010, 07:38:18 PM »
I used all the Ruger One load data in my Handi.

I found the lower end rounds were more accurate, and had more meat penetration.

I use 405 cast at 1700fps, and 565gr at 1300fps.

Offline torpedoman

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Re: 45-70 handi pressure limits?
« Reply #2 on: May 16, 2010, 08:00:00 PM »
It has been my experience that the max load is not the accuracy load in the vast majority of calibers I will check speed of my loads but i always look for the most accurate round i can get for a gun.
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Offline xhare

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Re: 45-70 handi pressure limits?
« Reply #3 on: May 16, 2010, 08:04:13 PM »
A 300 grain bullets at 2200 fps is achievable within SAAMI pressure specs of 28,000 psi, no need for the high pressure loads.   That said, the SB2 frame can take Ruger loads.  The 500 S&W has much higher pressure.

Offline GrassLakeRon

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Re: 45-70 handi pressure limits?
« Reply #4 on: May 17, 2010, 02:17:40 AM »
Amazing, I have had this question on my mind now for months.  Based on research, 45,000 CUP or around 50k psi.


Ron

Offline Spanky

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Re: 45-70 handi pressure limits?
« Reply #5 on: May 17, 2010, 02:24:41 AM »
The Handi will handle Ruger loads just fine but it'll beat the hell out of you shooting them.



Spanky

Offline nomosendero

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Re: 45-70 handi pressure limits?
« Reply #6 on: May 17, 2010, 02:53:59 AM »
The Handi will handle Ruger loads just fine but it'll beat the hell out of you shooting them.



Spanky

To say it handles Ruger # 1 loads implies that the Handi can handle ALL Number 1 loads & a previous poster said he used ALL Ruger Number 1 loads. Well, nothing blew up so it was fine thought processes I guess!  ::)

I had better contact Ruger, because we know that the NEF folks know the magnums are a little much for the Handi, but the Ruger folks do such chambering as 300WM & magnums up to 458 Lott & 416 Ruger, what a concept.

I can see Marlin loads, but to  say all Ruger Number 1 loads are acceptable is pure crap & dangerous to say the least to advise to anyone who might read this. They are NOTas strong as a Number 1!!!

At the risk of someone on this forum or the same person for that matter to say "you ain't so cool" is a risk I will gladly take here.

I just don't understand why Handi users can't accept these rifles for what they are: A good rifle that gives more bang per buck spent than most, nice handling, many times accurate, sometimes very accurate & fun rifles.
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Offline Gallahad

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Re: 45-70 handi pressure limits?
« Reply #7 on: May 17, 2010, 03:37:38 AM »
XHARE,  Where's the load data for that? hornadys fastest "marlin" load is 2100 fps with a 300 gr. and they said their limit was 40000 cup?

Offline Mac11700

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Re: 45-70 handi pressure limits?
« Reply #8 on: May 17, 2010, 04:24:27 AM »
The Handi will handle Ruger loads just fine but it'll beat the hell out of you shooting them.



Spanky

To say it handles Ruger # 1 loads implies that the Handi can handle ALL Number 1 loads & a previous poster said he used ALL Ruger Number 1 loads. Well, nothing blew up so it was fine thought processes I guess!  ::)

I had better contact Ruger, because we know that the NEF folks know the magnums are a little much for the Handi, but the Ruger folks do such chambering as 300WM & magnums up to 458 Lott & 416 Ruger, what a concept.

I can see Marlin loads, but to  say all Ruger Number 1 loads are acceptable is pure crap & dangerous to say the least to advise to anyone who might read this. They are NOTas strong as a Number 1!!!

At the risk of someone on this forum or the same person for that matter to say "you ain't so cool" is a risk I will gladly take here.

I just don't understand why Handi users can't accept these rifles for what they are: A good rifle that gives more bang per buck spent than most, nice handling, many times accurate, sometimes very accurate & fun rifles.


+1

Some folks won't ever learn my friend.

Mac
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Offline Spanky

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Re: 45-70 handi pressure limits?
« Reply #9 on: May 17, 2010, 06:27:57 AM »
The Handi will handle Ruger loads just fine but it'll beat the hell out of you shooting them.



Spanky

To say it handles Ruger # 1 loads implies that the Handi can handle ALL Number 1 loads & a previous poster said he used ALL Ruger Number 1 loads. Well, nothing blew up so it was fine thought processes I guess!  ::)

I had better contact Ruger, because we know that the NEF folks know the magnums are a little much for the Handi, but the Ruger folks do such chambering as 300WM & magnums up to 458 Lott & 416 Ruger, what a concept.

I can see Marlin loads, but to  say all Ruger Number 1 loads are acceptable is pure crap & dangerous to say the least to advise to anyone who might read this. They are NOTas strong as a Number 1!!!

At the risk of someone on this forum or the same person for that matter to say "you ain't so cool" is a risk I will gladly take here.

I just don't understand why Handi users can't accept these rifles for what they are: A good rifle that gives more bang per buck spent than most, nice handling, many times accurate, sometimes very accurate & fun rifles.


+1

Some folks won't ever learn my friend.

Mac

Ruger loads range from 28000-50000 according to Lee's second edition. ;)



Spanky

Offline quickdtoo

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Re: 45-70 handi pressure limits?
« Reply #10 on: May 17, 2010, 07:05:33 AM »
Just looking at my load data, and hornady gives marlin loads 40000 cup, and ruger loads 50000 cup. where is the limit for the handi?

This question has been asked a lot, this is from the FAQs in the Handloading section, check out the Buffalo Bore and Garrett loads they consider safe in the Handi, while the gun can take those loads just fine, most shooters find them untolerable!! ;D

Tim

WHAT LOAD LEVEL FOR 45-70?
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Offline S.E.Ak

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Re: 45-70 handi pressure limits?
« Reply #11 on: May 17, 2010, 07:24:55 AM »
And what we call Handis are not all created equal. As Tim pointed out to me my 1987 45/70 is not the same as the SB2 2007 Handi. I once saw info that stated the Ruger#1 is tested to 125,000psi (safety measure added in),don't believe any Handi is close to that.

Offline Mac11700

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Re: 45-70 handi pressure limits?
« Reply #12 on: May 17, 2010, 08:32:13 AM »
And what we call Handis are not all created equal. As Tim pointed out to me my 1987 45/70 is not the same as the SB2 2007 Handi. I once saw info that stated the Ruger#1 is tested to 125,000psi (safety measure added in),don't believe any Handi is close to that.

Your right..no where near to that level.

Here is a couple questions for you guys to find out on your own..

What pressures do Garrett and Buffalo Bore load their 45-70 ammo to ?

What pressures level is almost all 500 S&W commercially loaded ammo too?

When you find out..post about it..

Mac

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Offline NFG

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Re: 45-70 handi pressure limits?
« Reply #13 on: May 17, 2010, 09:26:14 AM »
Can't understand why the questions about "how much pressure...." keeps coming up...especially after all that information about the various aspects was presented on the "Handy frame stress" thread. ??? :(  

I happens one EVERY thread about NEF's on EVERY forum I have visited...over and over again...and the same information about the problems keeps being presented.

If you load to what YOU think are Ruger #1 or T/C pressures in the NEF you are asking for trouble....because very few understand the full parameters or how pressure is related to bullet seating, weight, hardness, shape, construction, bore size/bullet size, etc., and I haven't mentioned the rest of the causitive components, or have the equipment to measure the pressures accurately, don't fully understand the how's and why's of pressure testing and the NEF just ISN'T designed to handle those pressures...no matter WHAT someone happens to say in some thread somewhere.  Information just keeps getting muddled and miss applied.

Want an eye opener...punch up "Nef pressure limits" or a similar question, in a search, on the net and see what comes up!!!!!!

I guess we just DON'T read and OR undestand, or don't BELIEVE what we read or want to read only WHAT we WANT to read...which is more likely...I'm guessing that is the more likely scenario.

As I have said many times....Whatever you put on the net STAYS there and gets misunderstood continuously.  I wonder what the reasons are...some Psychologist could get rich very quickly if he came up with a simple answer.

Tim said it all...Garrett loads will stomp the stuffing out of most people and they are only loaded to 35KCUP PLUS the heaviest bullets, 500 and 540 gr at the 35KCUP are NOT recommended for the NEF.  That should tell us something.  Go to Garretts site for more information.   

Bullalo Bore doesn't give pressure readings but if you want a comparison, look at the Lyman 48th Ed  reloading manual and compare the velocity/pressure data for 500 gr bullets and what BB list as their velocity for a 500 gre bullet and which rifles are recommended...that should give you a very good idea WHAT pressure BB loads to...BUT not what powder.

The same goes for the 500 S&W...I have read several pressure ranges for different pistols and rifles...I won't post that info as anyone interested can find it very easy and I DON'T wan't ANY information...mis, dis, faulty or misconstrued...going out on the web.

I'm pulling the 720 gr slugs out of the 9 out of the 10 I loaded back then, plus redoing the lockup and lug shims on my BC as the first first one in this batch I touched off way back last year, popped open the action and broke the barrel latch.  These loads are well within pressure considerations from TWO software programs, but "stuff" can happen when you reload.  

I had worked up to this load carefully and the previous 3 rounds at that level didn't show any problems, popped right out, primers were still rounded at the edges, but something happened that caused this load to spike the pressure.  I had other things going on so I just made my notes and put it aside.  

The bore riding section of this batch of bullets is a few tenths larger than the last batch I shot so I would suspect that is a partial the cause, plus the latch was only getting about half the contact it should...I asked that question a few days ago but didn't get any responses.

I will turn down that section of the bullet a bit and start over..low and slow.

The average HandiRifle user AND reloader of ANY rifle/pistol/shotgun is really in the dark about what the H** and why when it comes to many aspects of the reloading process and those of us who have been doing this for a long time can still get bit on the tush now and then.  ;D :(

No diss or flame intended to anyone...just my observations...hopefully to educate and pass on a bit of experience...

Luck

Offline quickdtoo

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Re: 45-70 handi pressure limits?
« Reply #14 on: May 17, 2010, 09:34:26 AM »
Garrett lists 35kcup for the 45-70 loads on their website, I sent Buffalo Bore an email, I'll post their reply. FWIW, Hodgdon lists 51.9kpsi for their top 500S&W load, 500gr @ 1482fps from a 10" barrel, their 440gr cast loads are 1653 and 1654fps @ 50.5 and 49.9kpsi, Buffalo Bore lists their top cast load at 1625fps for comparison. John Taffin reported the top Buffalo Bore 440gr load @ 1925fps in the Handi.

Tim

http://www.garrettcartridges.com/products.asp

http://data.hodgdon.com/main_menu.asp

http://www.buffalobore.com/index.php?l=product_list&c=19

http://findarticles.com/p/articles/mi_m0BQY/is_1_53/ai_n16866654/pg_3/?tag=content;col1
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Offline quickdtoo

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Re: 45-70 handi pressure limits?
« Reply #15 on: May 17, 2010, 09:49:58 AM »
Tim said it all...Garrett loads will stomp the stuffing out of most people and they are only loaded to 35KCUP PLUS the heaviest bullets, 500 and 540 gr at the 35KCUP are NOT recommended for the NEF.  That should tell us something.  Go to Garretts site for more information.   

I suspect the only reason why Garrett doesn't list other firearms for their 500gr and 540gr is due to the cartridge overall length and short throated firearms, they don't even list the Ruger for either of them, H&R 45-70s are notoriously short throated, they specifiy modern ballard barreled Marlins only on the 540gr and Marlin and Winchesters only for the 500gr.

http://www.garrettcartridges.com/products.asp

Buffalo Bore addresses this issue with their 500gr bore rider bullets, they're also loaded nearly 100fps faster.

Tim

http://www.buffalobore.com/index.php?l=product_detail&p=154

[45-70 Magnum - Lever Gun Ammo - 500 gr. F.M.J.F.N.(1,625fps/M.E.2,931 ft.lbs.) - 20 Round Box

We use only factory stock firearms in recording velocities, so that you get true, actual field velocities with our ammo --- not exaggerated test barrel velocities

All .45-70 Magnum loadings are intended for use in the following firearms:
All Marlin Model 1895 variations made since 1972
Browning Model 1885 and 1886
New England Arms Handi-Rifle
Ruger #1 and #3
T/C Encore
Shiloh, Christian and Pedersoli Sharps
New Production Winchester 1886

The 500 gr. load uses a dual diameter, bonded core bullet by Alaska Bullet Works. The bullet diameter in front of the crimp groove is .449 inch, while measuring .457 inch on the shank. This dual diameter allows for reliable chambering in rifles with short or no throats. This is a non-expanding Full Metal Jacket bullet designed for the deepest penetration on the largest game animals. This load is safe for use in any firearm designed for the other BBA .45/70 MAG. LEVER GUN cartridges.
"Always do right, this will gratify some and astonish the rest" -  Mark Twain

Offline Gallahad

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Re: 45-70 handi pressure limits?
« Reply #16 on: May 17, 2010, 11:24:48 AM »
FWIW I asked the question so I could get good performance, while keeping within the safe limits of my firearm, not to "push it to to the limit". Just puttin that out there.

Online Graybeard

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Re: 45-70 handi pressure limits?
« Reply #17 on: May 17, 2010, 12:04:35 PM »
I'm going to end this one. I do not want such data being passed around here to perhaps get someone killed or maimed.

The Handi is not remotely as strong as the TC Encore and it is not nearly as strong as the Ruger One. To say they are is rather silly. No break action gun can be as strong as the falling block Ruger action. The steels used in them are not even as strong as the steels in the Ruger.

Sure there is no doubt you can get by with using SOME Ruger level loads in the Handi for awhile. How long awhile is the question tho and honestly no one has an answer to that question.

If you wish to continue this line here they ask the manufacture if the gun can take all Ruger loads published in load manuals. If they say yes then show it here. If not then don't say it can take it as you are gonna get someone's gun blown up who might not be an experienced reloader and doesn't know better.

I realize folks are loading to proof load levels in lots of guns and getting by with it for some time. But then lots of guns mysteriously come apart each year as well.


Bill aka the Graybeard
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I am not a lawyer and do not give legal advice.

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