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Shooting & Reloading - Mausers, Big Bores and others >> Mannlicher Discussion forum & Archive

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casper50
.400 member


Reged: 18/10/07
Posts: 1445
Loc: Alaska
Took the 1892 to the range.
      #303482 - 01/08/17 07:35 AM

Load was 42 grains IMR 3031, winchester large rifle primer and a Woodleigh 270 grn. Anyone have an idea why it would keyhol at 50yds?





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deeangeo
.300 member


Reged: 09/05/15
Posts: 207
Loc: United Kingdom
Re: Took the 1892 to the range. [Re: casper50]
      #303483 - 01/08/17 07:54 AM

Just guessing, propellant load unable to stabilise bullet?
Bullet weight/twist?
Any damage to muzzle crown?
No idea other than the above!
Good luck.

--------------------
Blaser K95 Luxus Kipplaufbüchse, .25-06 Rem. Schmidt & Bender 8x56 & Nosler 110gn Accubond = Game Over!


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Sarg
.400 member


Reged: 20/01/07
Posts: 1365
Loc: Nil
Re: Took the 1892 to the range. [Re: casper50]
      #303485 - 01/08/17 09:57 AM

Thats a bugger, my 375EX does to but with the Hornady 270gr & the Woodies are ok, on mine I think the rifling is worn a bit, be pleased to hear it could be some thing else ?

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Huvius
.416 member


Reged: 04/11/07
Posts: 3555
Loc: Colorado
Re: Took the 1892 to the range. [Re: Sarg]
      #303488 - 01/08/17 01:24 PM

How does the barrel look in general?
Is there any decent rifling even down toward the muzzle end?
Any pressure signs - cycling or primers? Not expecting there would be, just wondering.
Your powder is a little faster than what Wright lists in his book but your charge is a little lighter too so seems it should be in the ballpark.

--------------------
He who lives in the past is doomed to enjoy it.


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wjw
.275 member


Reged: 05/06/10
Posts: 55
Loc: b.c.
Re: Took the 1892 to the range. [Re: Huvius]
      #303489 - 01/08/17 02:35 PM

Is your bullet diameter slightly small for your barrel? Have had this happen in both .38 and .40 cal. single shots from the late 1800's as well as the .280 Ross. Slightly larger diameter bullets made the keyholes disappear.

Bill


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50Calshtr
.300 member


Reged: 01/11/05
Posts: 119
Loc: Southeast Georgia
Re: Took the 1892 to the range. [Re: wjw]
      #303603 - 04/08/17 05:43 AM

Had the same results with my 303 Watson Bros 1892 using .312 diameter bullets. Now using .314 dia and the keyholeing was cured.
Best.


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casper50
.400 member


Reged: 18/10/07
Posts: 1445
Loc: Alaska
Re: Took the 1892 to the range. [Re: 50Calshtr]
      #303605 - 04/08/17 06:06 AM

I'm going to slug it this weekend.

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