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ezmobile

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Posts posted by ezmobile

  1. Gets me out of the way of my wife when,  seemingly,  I've upset her!☺️

    Seriously though, in a way I do quite enjoy it, locked away in my "man cave" and having a solo conversation!  

    Message to KABOOM: I was meant to be up your way in Wyoming in a couple of weeks time.......Ah well, maybe next year?

  2. 5 hours ago, Ballistol said:

    The driving band indeed helps with obturation, but it forcibly contacts the rifling of the barrel forming the only point of physical contact to the barrel itself. The rifling effectively engraves the band as it is driven up the barrel thereby imparting the spin necessary to stabilise the shell. 
    The driving band is machined to very precise tolerances and is consequently bright when machined, but this quickly oxidises and is of no consequence to the end user.

    Couldn't have explained it better myself!

    As for surface texture, my guess would be that its the actual shape of the bullet that the biggest contributor to aerodynamic performance. Wouldn't putting a texture on the surface, as opposed to a smooth finish,  just impair it? That said, I've heard that the dimples in a golf ball apparently aid in its flight.  

  3. 17 hours ago, Nick 53 said:

    Hi is why bullets purchased are so shiny? To assist in flight less drag I assume. 

    Thanks nick 

    My thought would be that nearly all copper objects machined are shiny (just think of copper plumbing tubes & fittings, copper wire etc.) because (a) they're newly made. (b) they are boxed immediately after production, helping to prevent oxidisation on the material. I rather doubt that they're actually "polished".

  4. 15 hours ago, meles meles said:

    You might like to research the topic of artillery shells which ride up the barrel on driving bands that obturate the propellant gases and reduce friction whilst isolating the shell itself from contact with the bore. The barrel experiences less wear and the shell itself can have a textured surface. Knowingly or not, the taxpayers of many nations have spent a lot of money on the technologies involved...

    Is it not the case that while "driving bands" are made of a soft metal, like copper or similar, the shell casing itself is much harder - steel perhaps, thereby containing the bursting charge to a higher pressure, and also steel on steel would wreck the barrel rifling after a few rounds.

    I'm not an expert on this, just working with common sense. 

  5. I know this question has been asked a few times over the years, but can anyone tell me the legality of bringing back bullets (heads, obviously) from the States?

    I'm heading there in a few months on a road trip and just wondered if its permitted to bring back a box or two of bullets in the luggage hold. Is it a definite yes, or a definite NO NO!

    Cheers all.

  6. I'm pleased to see that others have read this and have concerns. To me, it reeks of the incessant "Creep" of legislation against legitimate firearm ownership in the UK & European countries. Its much easier to slowly make it more and more difficult for people to pursue a pastime, thereby forcing them give it up one by one, than it is to have a quick outright ban - along with its resultant claims for compensation!

    If this were indeed the aim, it would of course have a detrimental effect on UK / EU companies, but as anyone who reloads knows(or even those that don't) a lot, if not most, consumables come from the US so the negative effects of a ban wouldn't be shouldered solely by companies on this side of the pond, but be spread globally.

    Not wishing to delve into politics here, but I wonder if we do indeed leave the EU at some point in the near future, will we in the UK be able to swerve around this impending EU legislation? 

    Cheers all. 

     

  7. Hi all. Just wondering if anyone noticed in the last NRA journal (Autumn) that there was a small article which states that the EU are considering banning lead in ammunition. By this, can I  assume they can mean the lead cores of bullets? Has anyone else spotted this as well as me, and does anyone have any thoughts on it.

    Seeing as how certain U.S. powders are now banned in EU countries, if this is combined with making it very difficult to get bullets - also mostly US made, it'll start to get very difficult to get, or make ammo, that would be EU compliant, do you see where I'm going with this question??

    Any thoughts anybody....

     

  8. 18 hours ago, One on top of two said:

    I think if you can push them fast enough you can compensate for a slightly slower twist rate , there exceptions to the rule of course , but as long your happy to run them fast it’s more than possible to get away with it to some degree 👍

    I memory serves, I was running the 178's at around 2,800 fps - give or take, through a 28'' tube. These gave me a 50.10 at this years McQueens at Bisley. Using 44.3 grains of some old TR140 powder

  9. Going slightly off piste here, but I have used Hornady 178 grn A-Max (.30 cal) in a rifle with a 1:12 twist when on the box it clearly states that they're for a 1:10 twist.....They were very accurate out to 900 / 1K yds.

    As for 75 grn Eld's, I don't have direct experience of these, but ditto for my 75 grain A-Max's in a 1:8 Tikka T3 in .223

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