« previous next »
Pages: [1]   Go Down

Author Topic: 45-70 shorty question  (Read 724 times)

0 Members and 1 Guest are viewing this topic.

Offline Jason F

  • Trade Count: (261)
  • Senior Member
  • *****
  • Posts: 2105
  • Gender: Male
45-70 shorty question
« on: July 29, 2011, 08:35:09 AM »
I have a few 45-70 barrels so I figured I would like one as a shorty if I cut it to 16.5" how would the accuracy still be on it
Logged
handi rifles- 22 mag      22 hornet    223      7mm-08      308 chip shot     30-30 x2     30-06 shorty      358 cheez whiz     357 max     35 remington     375-08    410 rifled slug     454 casull     460 s&w     45 smokeless muzzleloader x2     45-70    50 huntsman    50-70 government shikari     20 ga.ush     12 ga.ush    12 ga.3 1/2     10 ga.imp.cyl. slug gun

Offline Shu

  • Trade Count: (0)
  • Senior Member
  • *****
  • Posts: 1484
Re: 45-70 shorty question
« Reply #1 on: July 29, 2011, 08:56:05 AM »
Barrel length does not really effect accuracy. Having said that your gun make not like your pet load as much as it used to, or it may like it more. The rule of thumb is if it was accurate before it will be accurate after. A bad crown will ruin accuracy.
Logged

Offline bikerbeans

  • Trade Count: (168)
  • Senior Member
  • *****
  • Posts: 4070
  • Gender: Male
  • BANDIT - North American Snake Hound
Re: 45-70 shorty question
« Reply #2 on: July 29, 2011, 10:03:06 AM »
Jason,
 
As Shu said you got do a proper recrown, which means the muzzle must be square to the bore when you recrown.   The shorter barrel will make a little more noise and you will loose a little bit of velocity but your gun will be much more Handi. ;)   Read the FAQs on recrowning and barrel cutting, but IMO it is so easy a caveman can do it.  I have a 45-70 and 30-06 that I cut and recrowned myself and both work fine.  If you do it yourself you might want to make it a little longer than 16.5" in case you have to correct a mistake. (I am assuming your are not a g-smith or machinist, if you are my apologies for the last statement)
 
BB
Logged
RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline quickdtoo

  • Global Moderator
  • Trade Count: (149)
  • Senior Member
  • *****
  • Posts: 43304
  • Gender: Male
Re: 45-70 shorty question
« Reply #3 on: July 29, 2011, 10:05:22 AM »
Logged
"Always do right, this will gratify some and astonish the rest" -  Mark Twain

Offline geezer56

  • GBO Supporter
  • Trade Count: (102)
  • Contributor
  • *****
  • Posts: 446
Re: 45-70 shorty question
« Reply #4 on: July 29, 2011, 01:38:26 PM »
Mine is cut to 18 in.  Accuracy is at least as good as before, but be ready for some horrendous muzzle blast.  And the crown is super important, as stated.
Logged

Offline Jason F

  • Trade Count: (261)
  • Senior Member
  • *****
  • Posts: 2105
  • Gender: Male
Re: 45-70 shorty question
« Reply #5 on: July 29, 2011, 02:04:12 PM »
No I am going to take it to ssk and let them do it
Logged
handi rifles- 22 mag      22 hornet    223      7mm-08      308 chip shot     30-30 x2     30-06 shorty      358 cheez whiz     357 max     35 remington     375-08    410 rifled slug     454 casull     460 s&w     45 smokeless muzzleloader x2     45-70    50 huntsman    50-70 government shikari     20 ga.ush     12 ga.ush    12 ga.3 1/2     10 ga.imp.cyl. slug gun

Offline Tencubed

  • Trade Count: (0)
  • Contributor
  • ***
  • Posts: 265
  • Gender: Male
Re: 45-70 shorty question
« Reply #6 on: July 29, 2011, 02:31:42 PM »
Velocity loss was mentioned.


I have a BC in 45-70 with the 32" (?) barrel length and a TC with a 16" barrel.  Don't remember the load or velocities but the bullet was a 405 grain.  Over the same chronograph on the same day the BC shot the load 300FPS faster than the 16" TC.


I really expected more of a velocity loss but that's what it was.


Mike
Logged
NRA Benefactor Life Member
Why do I carry a gun?  Because a Cop's too heavy.
Oldest rifle I shoot - 1854 Sharps 50-70

Offline tanoose

  • Trade Count: (0)
  • A Real Regular
  • ****
  • Posts: 839
  • Gender: Male
Re: 45-70 shorty question
« Reply #7 on: July 29, 2011, 08:21:46 PM »
i cut mine to 18"  from 22" she shoots the same.
Logged

Offline Ganjiro

  • Teppo Baka
  • Trade Count: (1)
  • Avid Poster
  • **
  • Posts: 157
  • Gender: Male
Re: 45-70 shorty question
« Reply #8 on: July 31, 2011, 04:40:42 PM »
You'll have an increase in muzzle flash too more visible in twilight. 
Logged
Illegitimus Non Carborundum

Offline 1895gunner

  • Trade Count: (0)
  • Member
  • *
  • Posts: 35
  • Gender: Male
Re: 45-70 shorty question
« Reply #9 on: July 31, 2011, 04:59:28 PM »
All of my levers are 18.5" or 16.25" and ported from factory. All of them are more accurate than I am. ;D
 
Here is my 45/70 @ 18.5"
 

 
1895Gunner
Logged

Offline dpe.ahoy

  • GBO Supporter
  • Trade Count: (7)
  • Senior Member
  • *****
  • Posts: 3363
  • Gender: Male
Re: 45-70 shorty question
« Reply #10 on: July 31, 2011, 05:38:20 PM »
1895gunner, welcome to the other side of the Marlin family.  Guess alot of us are having problems logging onto MO's today.  With the 45-70 loaded with gentle to the shoulder loads, you won't see a large percentage of velocity loss.  Many times accuracy will improve due to less barrel "whip" as the bullet travels through.  May have to work up a new load, or you may not have to, won't know until you try.  As 1895gunner said, some of us like em short and loud. ;) ;D   DP
Logged
RIP Oct 27, 2017

Handi's:22Shot, 22LR, 2-22Mag, 22Hornet, 5-223, 2-357Max, 44 mag, 2-45LC, 7-30 Waters, 7mm-08, 280, 25-06, 30-30, 30-30AI, 444Marlin, 45-70, AND 2-38-55s, 158 Topper 22 Hornet/20ga. combo;  Levers-Marlins:Two 357's, 44 mag, 4-30-30s, RC-Glenfields 36G-30A & XLR, 3-35 Rem, M-375, 2-444P's, 444SS, 308 MX, 338Marlin MXLR, 38-55 CB, 45-70 GS, XS7 22-250 and 7mm08;  BLR's:7mm08, 358Win;  Rossi: 3-357mag, 44mag, 2-454 Casull; Winchesters: 7-30 Waters, 45Colt Trapper; Bolt actions, too many;  22's, way too many.  Who says it's an addiction?
Pages: [1]   Go Up
« previous next »