15mm rifles

[email removed] (Mark Urbin) says;

>  I noticed someone
>was designing a *large* rifle.  In the 15mm range.

for those of us not particularly familiar with real-life weapon
diameters (or at least not in millimeters) could you put this into
context please?

I *thought* that a 30-06 rifle had a round 6/10ths of an inch in
diameter (this doesn't sound right to me).  That would make it
(using my thumbnail approximation of 25 mm to an inch) about
15mm diameter.  This can't be right if your talking about 15mm
being a *large* rifle, I assume your talking about an elephant rifle,
not a deer rifle.  Could someone please correct me?

It would also be helpful to me if someone could post a list of standard 'real'
weapon calibers and show their diameter in mm (ie. .357 Magnum=XXmm pistol).

btw, if anyone is looking for a source of less than usual weapons for a
traveller campaign, I've always used the weapons from Traveller 2300.  There
are several combined weapons (ie gauss rifle/grenade launcher), they can be
easily translated in game terms, and they have great pictures for every
weapon.  Keep in mind though that they are at tech level 11 or 12.

Of course, I was always a fan of the very thin very high velocity round
which should have a better penetration than any large (non-explosive) round
in any case.  It will also, of course, do less damage (which is why you fire
a three round burst, or full auto)

I also wonder about how ff&s handles recoil for these *large* rifles.

Pete

"The opinions expressed certainly have nothing whatever to do with
the University of Chicago or the Department of Biochemistry (I just
work there and use their toys)."

Peter Brenton					   [phone removed]
Biochemistry & Molecular Biology	[email removed]
The University of Chicago