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Posts posted by Webby

  1. Last I hear Wisdom got screwed by life and now has some messed up medical Bills.

    That about sums it up. 5 figures is a big ass medical bill. To make matters worse, apprently the laser on his PS3 has also died, so no GTA5 for him atm either... Talk about being kicked while your down.


    which is a pity as I'm trying to introduce a gal to Cyberpunk 2020. I wanted at least the maps to share with her.

    Well, it's handy that Wis kept everything available through his Dropbox account:



  2. I always viewed the TECH stat as a measure of a chacters inate technical affinity as well as their ability to manipulate it. To me, TECH is about 'understanding' and INT is about 'knowing'.


    Interestingly, if you give a 4 year old an Iphone or a Laptop and they will probably master its capabilities in a week. That doesn't mean they are going to rival Einstein.

  3. [Which diameter are you measuring - to the inside of the rifling, or the outside?

    Also keep in mind, the projectiles DO deform, or the barrel would be ruined with the first shot fired through it. I don't know is Wiki is correct, but I know that, if the projectile were smaller than the barrel, little of the force of the propellant would be used. I helped a friend with a cannon she picked up at a flea market. The first round was small enough to fit into the barrel, without too much resistance. In spite of the wadding, what we got was a "pop" and the projectile flew about six feet. The second round was tight enough that we had to use a lot of force on the ramrod - resulting in a loud boom, and we never saw that projectile again.


    Stray Catalyst


    It was the measurement of the rifling. I wasnt aware of that level of deformation.


    Cheers to all, you've all been very helpful and insightful.

  4. Does anyone have the exact data on the diameter of a barrel compared to its projectile?


    And finally, is the 7.62mm wikipedia correct with the fact that a 7.62mm barrel is used to fire 7.82mm rounds (the .308). Seriously, the barrel is smaller than the bullet?

  5. So the bore of a rifle is so specific, even a 10th of a milimetre is to much space? Thats serious precision engineering.


    How was such perfection achieved in the pre-war era?

  6. No, its all me. Something I may use in a game.


    All chamber issues aside, it could be done.



    Ok, reworded questions:


    What is the exact diameter of the inside of a barrel compared to the round it is designed to fire? Is it the exact same (totaly flush) or is it slightly larger (even by 0.001mm, just to allow the projectile to pass through the barrel without friction)


    What sort of effect would a loose projectile have in the barrel? Are we talking reduced accuracy or velocity? or something far worse?



    With the 5.56mm and the 5.45mm, Im rather curious about what that 0.11mm difference would mean in a barrel.

  7. Im in need of your help once again amigos.


    This time, im totally out of my depth and I have no idea of where else to look for an answer. I can but hope that some of you are able to impart to me, your wisdom on the matter.


    Aside from the issues with the reciever, would the following be feasible. And if so, what effect would it have on both the barrel and the projectile.


    1: Could a 5.56mm barrel be used to fire a 5.45mm projectile?


    2: Could a 6.8mm barrel be used to fire a 6.5mm projectile?



    And finally:


    3: Is there a difference between barrels used for 7.62x39mm rounds and 7.62x51mm rounds?



    Again, thank you all. You always come through.

  8. Umm...you do realize that 8.36g of propellant is quite a bit, right? A 7.62NATO round only uses 2.22g of propellant so, yes, I do believe that a 10mm 23g projectile with four times the energy of a frickin' machinegun round will indeed go that fast.



    It just seems to be such a small amount. I cant help thinking to myself; "Is that it?" when i get that reading. And yet it can achieve that capability, with such a small amount. I guees ill be reducing the propellant from 20% capacity to 10%.



  9. I bought myself a copy on Ebay a while ago, but never got around to reading it. Finally dug it out again and ive been trying to work out a few things for a game im going to run.


    However, ive noticed a few technical issues. Either that, or ive gone mad and I cant read any more.


    Im trying to calculate the velocity of a 10mm rifle round. using TL 13 data, i have concluded that if i use only 20% of the propelant capacity, i can get the 23g lead slug to go a staggering 2051.016m/sec with only 8.36g of propelant.


    This seems rediculously fast to me, but ive gone over it time and time again. The numbers keep coming up like this. I even put it into a spread sheet for automatic calculation and Ive not made any mistakes.


    can somone tell me either where ive gone wrong, or how I can calculate a more realistic result?


    Thanks for your time guys, I know you'll come through for me, you always do.

  10. forgive my ignorance, but wouldn't twice the surface area and 10 times the mass equate to lower penetration?


    wouldnt that be countered by the sheer momentum and added force behind the round?


    Im pretty sure that it wouldnt be stoped by my NJIIa grade vest i wear to work




    BTW, can i just ask what 'Dangerous Game' would require the use of a 530 grain .50 cal. steel tip round?

    IPB Image

  11. Right, now im no expert on Ballistics (Who am I kidding, all i know is what ive learnt from TV, a couple of books and what ive read on this forum,) so what would the realistic difference be between a 300grain round and a 530grain round?


    I know that its the chrage behind it, what im asking is the difference in power, preferably with an example of the difference in stopping power.


    Found some info here and here, but I dont really know how to interpret it properly.

  12. If the target wasnt wearing armour, wouldnt the explosive then detonate inside them? This surely would be a horendous effect (not to mention gory...)


    Also, against solid metal armours, ie metalgear, wouldnt the round be very effective? (HEP/HESH, not HEAT)

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