Euroarms 1851 Navy, Shooting High

Discussion in 'Black Powder Shooting / Muzzleloaders / Handguns' started by trapnbow, Sep 12, 2009.

  1. trapnbow

    trapnbow Member

    Joined:
    Feb 4, 2008
    Messages:
    127
    Location:
    Northeast Massachusetts
    Gentlemen,
    I am in need of more expert advise. I almost have a fun gun.

    1. I now have the revolver shooting fine with a reduced load but it is shooting very high. Could this be because of the reduced load? I have started with this reduced load to be safe.

    2. I also have occasional hammer bounce, even with this reduced load, that unlocks the cylinder upon firing. I assume that this is a hammer spring tension problem? Would you advise just re-shaping, or replacing the hammer spring?

    The literature claims that this 44 cal has a max load of 28 grains of FFFG. I am using about 17 grains of FFFG topped off with Cream of Wheat and a WonderWad. The ball is 0.451", C of W has better texture than corn meal. I am using CCI Magnum Primers.

    The groups are good but the center of the group is 8" high at 50 feet and about 11" high at 75 feet.

    Any advise for the two issues described above would be appreciated. :)
  2. Hammerslagger

    Hammerslagger New Member

    Joined:
    Jul 30, 2009
    Messages:
    1,097
    You may have to put a higher front sight on it, or see less front sight when shooting. The longer the bullet is in the barrel, the more time the gun has to recoil and shoot higher. Heavier powder charges produce more recoil. The combination of total recoil and time recoiling determines how high it will shoot. This is easiest and usually determined by trial and error vs mathematical calculations.

    I am not familiar with the Euroarms brand. Most Italian repo revolvers in nominal 44 cal.will only hold about 33 grains of FFFg Black Powder (by weight) and have room to seat the ball. That is typically the way I load and shoot them sealed with Crisco shortening or lard. The 19th cent. originals (excepting Walkers) held more powder, and were not known for breaking fully loaded. I do not understand why your brand would have a 28 grain max recommended charge, unless it is made from inferior materials (possibly Spanish). It should be made from at least 60K psi low carbon steel. I doubt you could get enough Black Powder in it to generate 12K psi. behind a round ball. Still, better safe than sorry. I am not advising exceeding maker limits, even though they seem low.

    I also keep a cleaning rod with a bronze bristle brush in my range kit. I brush the barrel well after every cylinder full to preserve accuracy from residue build up.
  3. trapnbow

    trapnbow Member

    Joined:
    Feb 4, 2008
    Messages:
    127
    Location:
    Northeast Massachusetts
    Thanks Hammerslagger,

    I appreciate the prompt reply and will try heaver loads this afternoon.

    Do you have any thoughts on the occasional hammer blowback problem. When the hammer blows back it unlocks the cylinder. This is not good during the firing cycle. Have you had this occur and if so what was the remedy. I have assumed that it is a weak hammer spring and I might to stiffen it before I go to the range this afternoon.

    Thanks, :)
  4. Alpo

    Alpo Well-Known Member

    Joined:
    Feb 3, 2007
    Messages:
    11,746
    Location:
    NW Florida
    The 1851 Colt had a front sight designed to have the bullet at point of aim at 75 yards. Which means that at any realistic pistol range, it is going to shoot high. The replicas have the same sight height. Your options are to either replace the sight with a taller one, aim under what you are shooting at, or just point it and ignore the sights. With the rear sight being a notch in the hammer, using the sights is kinda "Huh?", anyway.
  5. Hammerslagger

    Hammerslagger New Member

    Joined:
    Jul 30, 2009
    Messages:
    1,097
    The hammer should not "blow back", ever. If such is happening your nipple(s) is burned out (or was made grossly too big going to the chamber).

    The offending nipple(s) will have to be changed.
  6. trapnbow

    trapnbow Member

    Joined:
    Feb 4, 2008
    Messages:
    127
    Location:
    Northeast Massachusetts
    Thanks guys, the pompt responses are great.
    I fired again this afternoon with a 25 grain charge of FFFG (and just the Wonder Wad) and it still shoots high at 50 feet and actually is still high at 50 yards. I give up on the POI problem for the moment and will order a new set of nipples to solve the more ciritical problem.
    This excercise has been a real learning experience and I apprectiate the assistance. I am an old bulleye shooter but have not done anything with BP revolvers before this adventure. My BP TC muzzle loader is as accurate as most rifles and I was hoping to get the same results with the revolver. I am learning fast that probably will not happen. However, even with the POI high, the groups are about 2 - 3 inches at 50 feet not too shabby.

    Does anyone else own a Euroarms revolver?
Similar Threads
Forum Title Date
Black Powder Shooting / Muzzleloaders / Handguns Euroarms, Colt 1851 Navy Disassembly Jul 28, 2009
Black Powder Shooting / Muzzleloaders / Handguns Seating heeled bullets 1851 Conversion Mar 18, 2014
Black Powder Shooting / Muzzleloaders / Handguns Replacing Parts on 1851 Navy Colt Oct 24, 2013
Black Powder Shooting / Muzzleloaders / Handguns Replacement Springs for 1851 Navy Colt Oct 24, 2013
Black Powder Shooting / Muzzleloaders / Handguns Best Ammo for 1851 & 1861 Colt Navy Replica's Mar 6, 2013

Share This Page