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Just did what ever one told me could not be done....................

Pottsy

Why not? You've nothing to lose on this one, and lots to gain. Will the Marlin cycle the 45-90?

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The 45-90 WCF has a case 2.4" long and a COAL of 2.88". To cycle a round that long in the Marlin 1895 actually takes quite a bit of work to the carrier, ejector and ejection port. And even then it would not cycle reliably. A COAL of 2.75" is about as long as one can get reliable cycling. In addition, even though the Marlin 1895 has a rather long throat, one would most likely have to deepen the throat to accept the 45-90. So it wouldn't work that well and would be expensive work. A better choice would be a Winchester or Browning 1886.

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Jackfish, COL on my 45-90s with the Hornady 350 is 2.843". That's about the largest bullet I care to use on the little 'ol pigs and deer in the neighborhood, anyhow. Usually I stick to 300 grainers which makes 'em a tad shorter. I think that they're still too long for the 336 action. Now, if Marlin ever considers going back to the original 1895 frame specs there would'nt be a problem with any COL. Just a Winchester guys opinion FWIW. :D

That's an awfull light gun to be shooting a 45-90 in. It will hurt you bigtime. I ahve a 50-90 rolling block that weighs 18 pounds and it can take you back after a long string. Those cartridges were designed around BP and should be shot with such. A big 500+ grain bullet from a 45-70 will even thump ya'

My '86 Winchester is a lightweight model made in 1918. It weighs just under 8 lbs, unloaded. It does have a nickle steel barrel and was made to shoot smokeless. Admittedly, recoil is a bit much, especially with heavy loads.

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I have been advised that one can safely shoot 45-70 in a 45-90 lever. I would appreciate if anyone could verify that for me. Does it hurt the brass or damage the barrel? Lead bullets only or can one use jacketed? Thank you!

Yeah my 1886 Extra-Lite in 45-90 boots pretty hard!!! Anyone know where I can get a glove lever for the 1886? I have started bech shooting without my fingers in the lever because it raps 'em pretty hard.

Martin -
I concur on the .45-90 conversion not being practical because of the extra length - also, if 'twere done, you'd have two (2) choices -
a) shoot loads heavier than possible in the .45-70
b) shoot .45-70 loads

Read thru all the posts on these forums & you'll find, as I did, that the general opinion is that mortals can't handle MAX loads in .45-70.
That pretty well leaves option b). Seems an AWFUL lot of money to spend if you're gonna do that! :-)

HOWEVER, no one understands better than I if what you're after is a.45-90 Marlin - one o' them "need" vs "want" deals. Logic jes' gets in the way then. ;-)
Shoot, I'll even ENCOURAGE you if that's what it's about!

Note to TxSgt :
-70 in -90 ZAKLY like .38/.357,.44Sp/.44Mag,.45 Colt/.454Casull.
All headspace on the rim, so length is not safety issue, as would be the case, say .308/.30-06. Only "downside" is MEBBE chamber fouling from shorter case.

regards,

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457WWmag=45/90
457WWmag=45-70 at 2.67" COAL No difference, Nada.

A 45-90 has a maximum COAL of 2.88".

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And it was what?

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I just wonder how a cartridge (45-90) can be outdone by a cartridge (457WWGmag) that has about 10 percent less case capacity.

A 45-90 loaded to its potential in a modern Winchester 1886 will certainly out perform a 457WWGmag loaded to its potential in a Marlin 1895.

A Marlin 1895 45-70 modified to cycle a 2.67" 45-70 round will equal the 457WWGmag. No proprietary brass, no rechambering.

Anybody wants to do the conversion thing - check with (www.cosbycustomguns.com) or SSK Industries. Get a reality check first. The Marlin can be converted up to .50 Alaskan, and that should keep your orthopedist in clover for some time. Teflon and titanium shoulder joints work slicker than mine that was just pinned back together. I have an old Browning 71 that awaits conversion to .50 Alaskan - but then I know I am crazy.

axlenut

Anybody wants to do the conversion thing - check with (www.cosbycustomguns.com (http://www.cosbycustomguns.com)) or SSK Industries. Get a reality check first. The Marlin can be converted up to .50 Alaskan, and that should keep your orthopedist in clover for some time. Teflon and titanium shoulder joints work slicker than mine that was just pinned back together. I have an old Browning 71 that awaits conversion to .50 Alaskan - but then I know I am crazy.

axlenut


Try this ----

Martin, cost of a rebore/rechamber is usually $265 plus return freight. At this time I don't have the 50 alaskan chambering reamer. I could still bump up the barrel if you have someone that has the reamer.
Dan

dan@cutrifle.com (dan@cutrifle.com)

With smokeless powder in a lever action you are unable to use the full capacity of the .45/70 case. I fail to see what going to a slightly longer,much more expensive case is going to gain you,unless your intention is to use blackpowder.

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With smokeless powder in a lever action you are unable to use the full capacity of the .45/70 case. I fail to see what going to a slightly longer,much more expensive case is going to gain you,unless your intention is to use blackpowder.

I don't know about Pottsy...but here is my reason why I am going to convert all 4 of my 45-70's to 45-90! Although the actual gain is supposedly only around 200 fps, I plan on standardizing my 45-90 at 300 gr and my 45-70 at 405 gr, that way - in my advancing years - I will not confuse myself with differing loads. Since one can shoot 45-70 and 45-90 in the same chamber it appears to make sense to utilize the capability for in increased range of bullets. Other than that, the longer cartridge is probably just a phallic symbol ;) . As for the cost, my eldest male child is now in gunsmith school, so I need but purchase the reamer for him to use.

Thank you Gentlemen!

txsgt

txsgt, which model 45-70 rifles do you plan this venture for? It is unlikely a Marlin 1895 can be converted successfully.

In addition, having a 45 caliber bullet travelling unsupported for almost three-tenths of an inch before engaging the rifling is sure to cause throat problems if done extensively.

txsgt, which model 45-70 rifles do you plan this venture for? It is unlikely a Marlin 1895 can be converted successfully.

Sorry jackfish. I failed to say "Winchester" and "Browning". 2 original Winchesters w/Nickle Steel Barrels, 1 modern Winchester OBFMTD and 1 modern Browning SRC (all in 45-70. I have 1 add'l Winchester in 33wcf.

In addition, having a 45 caliber bullet travelling unsupported for almost three-tenths of an inch before engaging the rifling is sure to cause throat problems if done extensively.

I was led to believe this would not be a problem. Since I am but a neophyte in this area, would you expound some for me? I asked on this forum last month and the comparison was "like 22L and 22LR". I also asked my dealer who said I could shoot either round. Since I don't want excessive throat wear, I need to fully understand what I am doing. Is there a difference between lead and jacket bullets for wear? What is "extensively"...a thousand or so rounds? With too many guns now, it will take me a long time to burn that many rounds. So please let me know, no modifications have occurred yet. Thanks! txsgt

Try this ----

Martin, cost of a rebore/rechamber is usually $265 plus return freight. At this time I don't have the 50 alaskan chambering reamer. I could still bump up the barrel if you have someone that has the reamer.
Dan

dan@cutrifle.com (dan@cutrifle.com)


Martin:

It's just a coincidence that I visited the Cutrifle website the day you posted the reply! That Browning 71 will be in .50 Alaskan this year.

axlenut