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Thread: Reloading 6.5 carcano

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  1. #11
    Legacy Member Jsne's Avatar
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    lapua Mega 6.5x55.10.1 g / 156gr.

    The work exelent in my two gain rifled Carcanos
    i know they are only .264
    But dont worry. The work

    Jsne

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    A Collector's View - The SMLE Short Magazine Lee Enfield 1903-1989. It is 300 8.5x11 inch pages with 1,000+ photo’s, most in color, and each book is serial-numbered.  Covering the SMLE from 1903 to the end of production in India in 1989 it looks at how each model differs and manufacturer differences from a collecting point of view along with the major accessories that could be attached to the rifle. For the record this is not a moneymaker, I hope just to break even, eventually, at $80/book plus shipping.  In the USA shipping is $5.00 for media mail.  I will accept PayPal, Zelle, MO and good old checks (and cash if you want to stop by for a tour!).  CLICK BANNER to send me a PM for International pricing and shipping. Manufacturer of various vintage rifle scopes for the 1903 such as our M73G4 (reproduction of the Weaver 330C) and Malcolm 8X Gen II (Unertl reproduction). Several of our scopes are used in the CMP Vintage Sniper competition on top of 1903 rifles. Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Specializing in premium ammunition and reloading components. Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  3. #12
    Legacy Member Havenot's Avatar
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    The Carcano bore size is apparently somewhat variable from rifle to rifle. Some folks(me included) having fairly good luck with PPU 6.5mm ammo. Some guys swearing the .268" bullets are needed for accuracy and then some who had pressure issues with the .268" bullets and load with the more common .264" bullets.

    For cast bullet loads it's probably best to slug the bore and see what you have for bore size....can always use a gas-check on cast slugs

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    Legacy Member Bruce_in_Oz's Avatar
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    If Carcanos bores are anything like a lot of other rifling systems developed in that era, the bullets will be theoretically "undersized". The standard theory of the time was that the swift kick in the backside at ignition would "bump-up" the rear of the bullet for a reasonable seal and everything would be OK. I have never seen a recovered bullet that had been fired from a '91 Carcano, but if anyone has, could they take a close look at it. If it is not too mangled and distorted, see if the rear-most four or five millimeter is measurably larger in diameter than the rest of the bullet jacket and if there is a visible difference in the depth of the rifling marks on the jacket, from front to rear. i know that the original nickle alloy jackets are relatively hard, but they had to be softer than the barrel steel for the rifling to engrave the bullet.

    Another interesting theory that is discussed in early technical texts is that leaving a bit of "soot' in the barrel after each shot was a good thing, as the heat of the next cartridge that was fired would cause any atmospheric oxygen in the barrel to react with the "soot" and not the barrel steel. As in any rifle, the idea was for the bullet to engage the lands to cause bullet spin, but NOT for the bullet to be so hard that it acted like a high-velocity broach and just tore out the lands. .303 Lee Enfields work exactly this way: .311" bullets, .303 Bore, but a nominal groove diameter out to .319" was within spec. as per the drawings I have. It seems to work way out past 900 yards, as all the older target-rifle types will tell you.

    If the BORE diameter (across the LANDS is smaller than the Jacket diameter. (Bullet .264", bore .258 or so, "conventional bullets, and a "fast-ish" propellant may just get the job done nicely, bearing in mind that "sporting bullets generally have CLOSED bases as opposed to the open ones of "ball" projectiles. IF the jacket on a .264" "sporting" bullet is thin enough at the rear, and the propellant combustion has a reasonably high initial impulse, the bullet WILL "bump-up" a couple of thousandths of an inch. By the way, what is the availability of the six-round clips these days?.

    I suspect this concept is a hangover from the days of the Minie Ball, with that bullet being a "racing fit" when it was rammed down the bore, but the skirt around the hollow base was expanded by the powder gases and engaged the rifling to provide sealing and spin, (and to scrape out some of the fouling from the previous shot). Patt-53 Enfields firing the PROPER hollow-based bullet were not exactly "scatterguns"; being able to lay down some impressive groups at several hundred yards..

    If anyone plans to shoot a Carcano a LOT or have a whole room full of different models, Mr. Corbin may be worth contacting for the tools to make EXACTLY the bullet you want. NOT cheap toys but a definite solution and a whole new adventure!
    Last edited by Bruce_in_Oz; 04-16-2020 at 08:03 AM.

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    Contributing Member Ovidio's Avatar
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    I must still have one or two recovered bullets, original military ones. They are really like new, just with the sign of the rifling. I think that if they don't hit a hard surface, the Carcano bullets are really reusable...
    34a cp., btg. Susa, 3° rgt. Alpini

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    Legacy Member bob q's Avatar
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    I do have the dies to make my own Carcano bullets . It works good . Another solution is the use a lathe to either trim down or cut driving bands in the Big Hornady Carcano bullets . That also works well and has the advantage of being able to size a bullet to a certain rifle .

  8. #16
    Contributing Member Ovidio's Avatar
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    What does “cut driving bands” mean?
    34a cp., btg. Susa, 3° rgt. Alpini

  9. #17
    Legacy Member bob q's Avatar
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    The problem with the big Hornady bullet is too much bore friction and nowhere for the thick jacket to displace to with
    gain twist . If you cut .006 deep grooves every .050 down the body of the bullet that contacts the bore you have cut the friction in half and have room for displacement of jacket . You will still seal up and stay straight in the bore without all the drag . Like the original idea as stated in the other guy's post about bore riding bullets , but it works better as the bullet has several points of contact , not just the base . When Barnes was having pressure and fouling problems with their solid copper bullets I told them about driving bands and they now make their bullets with them .

  10. Thank You to bob q For This Useful Post:


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