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  1. #1
    Sidewinder
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    Microgroove 1895 and cast bullets

    I got to shoot my new to me marlin 1895 today and put 30rds. of my plinking load through it. I used .459 405gr over 30 grs. of IMR 4198, (which has worked well for me in an H&R Buffalo Classic and a Ruger No.3)and got the ever so teensiest amount of leading that came right out with a good cleaning. I've heard alot of complaints about lead bullets with microgroove but I've also heard great success stories from those who used .459 bullets under 1500fps. This load should be 1300-1400 fps depending upon source I can't say for sure because a chronograph is still on my must buy list. I'm new to shooting cast in rifles but have been doing it in handguns for several years, and I've had old timers tell me that if you get it just right they'll be no leading at all. Others have told me that leading is a part of life so I don't know what to think. Anyone have any sucess using cast in a microgroove barrel?

  2. #2
    Gun Wizard
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    I cast my own and shoot them in my 1895 with no leading at all.


    Doc
    "It Appears As Though My Hypocrisy Knows no bounds"




  3. #3
    Wrangler
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    Quote Originally Posted by Kyle M. View Post
    I got to shoot my new to me marlin 1895 today and put 30rds. of my plinking load through it. I used .459 405gr over 30 grs. of IMR 4198, (which has worked well for me in an H&R Buffalo Classic and a Ruger No.3)and got the ever so teensiest amount of leading that came right out with a good cleaning. I've heard alot of complaints about lead bullets with microgroove but I've also heard great success stories from those who used .459 bullets under 1500fps. This load should be 1300-1400 fps depending upon source I can't say for sure because a chronograph is still on my must buy list. I'm new to shooting cast in rifles but have been doing it in handguns for several years, and I've had old timers tell me that if you get it just right they'll be no leading at all. Others have told me that leading is a part of life so I don't know what to think. Anyone have any sucess using cast in a microgroove barrel?
    Sounds like you have done your research and are on the right track. Although I don't think you should except the leading, you shouldn't have any really - ideally you should never have to clean the bore if you only shoot lead. Just run a few dry patches down it after the days shooting to get rid of powder residues. Are you using a gas check? If no try one (maybe you'll need another mould though?). Otherwise see if yours will chamber a bigger bullet. What does your mould drop - .460? If so try it unsized for fit. If it fits in a fired case your good, also try chambering a dummy round with the bigger bullet. If it chambers that's also good. If your mould drops much bigger you might need to try a different sizing die - you can easily hone out a .459 by a thou or two. Or get Buckshot on the castboolits forum to make you one for $30 or so.

    My 45-70 micro groove shoots just under an inch at 100y with a tang sight with my cast loads if I do my part. They are sized .4595 (it won't chamber anything bigger), are 350gr (from an Accurate Mold) and have a homemade aluminium gas check. They're pushed by 36gr H4895 behind about 1gr of dacron filler. I think they're travelling around 1300 fps. I haven't tried a stouter load yet because I only hunt deer pigs and goats and roos so don't need one. But if I go north for some water buffalo, scrub bulls or camels I'll really stoke them.

    I'm sure you'll be able to eliminate the leading, it just might take some fiddling.

    Last edited by 1640hunter; 12-14-2012 at 07:23 PM.

  4. #4
    Gunfighter
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    Use gas checks and heat treated bullets sized as near .460 as you can get'em, and you'll never have any leading and push'em until your shoulder tells you to quit....
    After that fun you'll be back to 1300-1500 fps..... But no leading either.
    Salvaging old Marlins is not a past time ... It's a passion.
    Mostly 1893 through 1959 Marlin levers, short carbines to long rifles.
    Most models and variations in calibers
    30/30, .308, .32, .35, .357, .45 Colt, 45/70 (a few)...
    Cast and reload for 'em all, hunt year round.

  5. #5
    Gun Wizard
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    I don't have any trouble with ether one of my 45/70s and i don't think you need a really hard bullet if you stay around 1600 fps a gas check would be nice but not really needed its up to you bullet fit is more important then bullet hardness that has been my experience anyway .

    tom

  6. #6
    Sidewinder
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    I should have mentioned I don't cast my own do to a lack of space and time. I bought these from cbbullets.com on recommendation from several guys at my lgs. I originally ordered them for my H&R buffalo classic and they were supposedly sized .458, but after checking them they actually mic at .4595-.460 with a BHN of 18. So I'm not sure if maybe there not quite hard enough or maybe my bore is way oversize. I'm only noticing this little bit of leading in the last 2-3" of the barrel and I never noticed a loss in accuracy.

  7. #7
    Gun Wizard
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    those bullets sound about right ,I have had a smith and Wesson 629 shooting a quenched 250 gr RCBS 44-250-k do the same thing at around 1300 fps and as soon as i went to a little softer alloy bullet the problem went away .I have no problem with a 45/70 i have a GG and a 1977 22 inch 1895 and i don't have any problems with ether one .let us no how things turn out .

    tom

  8. #8
    Wrangler
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    Quote Originally Posted by Kyle M. View Post
    I should have mentioned I don't cast my own do to a lack of space and time. I bought these from cbbullets.com on recommendation from several guys at my lgs. I originally ordered them for my H&R buffalo classic and they were supposedly sized .458, but after checking them they actually mic at .4595-.460 with a BHN of 18. So I'm not sure if maybe there not quite hard enough or maybe my bore is way oversize. I'm only noticing this little bit of leading in the last 2-3" of the barrel and I never noticed a loss in accuracy.
    sounds like they should be big enough. I wouldn't mind betting any bigger wouldn't chamber any way. As mister270 says though, you may want a softer one so the bullet can obturate (base swells under pressure to help seal the bore) and/or a gas check. I think a gas check is the most important step in fact. I don't know what's available commercially, but I'd be highly surprised if you couldn't buy 459-460 GC bullets in a 45-70 friendly design.


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