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Subject: Re: Status of Brutus?

Author: Ricardo Gibert

Date: 01:57:19 07/30/03

Go up one level in this thread


On July 29, 2003 at 23:34:16, Robert Hyatt wrote:

>On July 29, 2003 at 11:15:21, Ricardo Gibert wrote:
>
>>On July 29, 2003 at 00:54:39, Keith Evans wrote:
>>
>>>On July 29, 2003 at 00:31:17, Robert Hyatt wrote:
>>>
>>>>On July 28, 2003 at 20:59:24, Vincent Diepeveen wrote:
>>>>>It is like comparing a sniper rifle from 2003 with a sniper rifle from world war
>>>>>1.
>>>>>
>>>>>Distances they shot at in world war 1 and 2 with sniper rifles must have been a
>>>>>few hundreds of meters.
>>>>
>>>>In WW1 my grandfather was a sniper.  He shot at ranges up to 1000 yards.
>>>>
>>>>In WW2 my father was a sniper.  He shot at ranges up to 1000 yards.
>>>>
>>>>Today, a neighbor down the street is a sniper.  He shoots at ranges up to 1000
>>>>yards.
>>>>
>>>>_nobody_ shoots a sniper rifle at ranges of "kilometers" today.  "kilometer"
>>>>perhaps.  With an occasional attempt at up to 2km with a big 50 cal "rifle".
>>>>
>>>
>>>Supposedly Gunnery Sergeant Hathcock took out an NVA at 2500 yards with a .50
>>>caliber machine gun. A friend got into the whole "Marine Sniper" scene and it
>>
>>This must be the Mcmillan Tac-50 fired from 2430 meters?
>
>Sounds more like a Barrett .50 sniper rifle.  25+ pounds, with a muzzle
>break as big as a brick bat.  I've shot one.  Shooting at an 8" plate at
>1000 yards.  And you can reliably hit it.  But a sure-kill requires 8"
>accuracy and beyond 1000 yards, it gets _very_ dicey.  With wind or mirage
>you can forget it.
>
>A machine gun is a different animal.  Hosing someone down at 2500 yards is
>far easier than placing a single shot on target.


Surprisingly, it can also be a sniping animal. The weapon KE was referring to
was apparently the "tripod-mounted Browning M2HB 12.7mm heavy machinegun", but
it is the Mcmillan Tac-50 (intended for sniping) that it inspired that has the
record though the browning was certainly very capable in *single-shot* mode. You
see, machine guns had unexpected role in sniping. The following is exerpted from
http://www.operationnorthstar.com/weapons.html where the Barrett is mentioned,
but is not the weapon in question:

"Mcmillan TAC-50

It became apparent during WWII that the tripod-mounted Browning M2HB 12.7mm
heavy machinegun was capable of highly accurate, single-shot fire. The M2’s
ability was more fully exploited by the US Army in Vietnam where some of these
machineguns were fitted with telescopic sights for long- range sniping. Until
recently, a sniper firing such an M2 held the distance record. The surprising
success of the telescope-equipped M2 machine- gun immediately suggested
development of a dedicated 12.7mm sniper’s rifle. A number of so-called BMG
civilian competition rifles have been marketed including a Barrett design
adopted by the US Army. The CF followed with a 12.7mm McMillan ‘Tactical’
ordered in April of 2000. The CF obviously thinks so and the performance of the
3PPCLI sniper teams in Afghanistan seems to bear this out. McMillan Tac-50s were
used by primary shooters with the 7.62mm C3A1s as back up. Despite the
difficulty of emplacing as large and heavy a rifle as the McMillan, the CF
snipers were extraordinarily successful — even when supplies of the special
‘match’ ammunition were exhausted and standard 12.7mm rounds had to be borrowed
from neighbouring US forces. Neither the Canadian government nor DND are willing
to comment on CF sniping or enemy casualties but unconfirmed reports put ‘kills’
by 3PPCLI snipers in Afghanistan at more than 20. One Tac-50 shot at 2,430m
represents a gruesome new world record for distance. The combat effectiveness of
both the Tac-50 and of CF snipers (nominated for five US Bronze Stars) has now
been proven."

BTW, CF = Canadian Force


>>
>>>was a little scary. Nice skill to have if you need it, but it scares me when
>>>people fantasize about it. (Especially when the word "safety" is spelled
>>>incorrectly at the range ;-)
>>>
>>>>This is just another area where you know nothing, but write as though you are
>>>>an expert.
>>>>
>>>>BTW, Hsu's move generator is _not_ a lot better than Belle.  All you have to
>>>>do is read his paper to see what he did...
>>>
>>>Hsu did add some modes which Belle did not have. For example finding checking,
>>>check evasion, and attacking moves. He hints at some other things like
>>>generating moves for pruning but this is very vague. He may have handled those
>>>basic special case moves (castling, ep captures) more elegantly, but it's hard
>>>to tell without seeing the implementation details of each. Hsu also added
>>>hardware repetition detection which is not part of the basic move generator
>>>logic, but if you group it with movegen just for the sake of argument then it's
>>>a noteworthy improvement. Maybe the adjective that Vincent used was a little
>>>extreme, but this statement doesn't bother me too much.
>>>
>>>-K



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