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  1. T

    Rifle Scopes Unleash the Beast...

    How anybody likes the Horus reticle for general military use is beyond me. I have limited exposure to them, using only a couple of friend's scopes, but oh boy. Perhaps we have too many bushes around here, but the spiderweb reticles make people swear in languages....
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    Rifle Scopes Unleash the Beast...

    It is a TALL beast indeed... (and it does not score well in the "style" cathegory if I may say so) :D But there are other far more important aspects in a scope. Frank, can you explain again to us how the brake works?
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    Range Report Best twist for M855?

    I've shot M855 and its equivalent from other countries in several rifles. M855 has a lead core and a steel tip, all covered with a copper alloy jacket, and has a green tip. Needs a 5.56 chamber, high pressures and functioning problems appear with 223 Rem chambers. SS109/M855 ammo is not...
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    Range Report WARNING-New Red Army ammo is CORROSIVE

    I wonder how all the east block managed to save their rifles, because I don't think the average recruit or soldier cleaned their rifles in the very first hour after every shooting.
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    What is the most Historically Significant Cartridge?

    I'll stick to history, thanks ;) Noteworthy that not even one pesky revisionistic historian (and there are plenty of them, with a passion for mauser history and endlessly discussing much more trivial tech tid bits than this one) shares your views.
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    What is the most Historically Significant Cartridge?

    So this timeline it is only your guess? All the written history goes by the version I posted.
  7. T

    Angle Fire, & Station Pressure.

    Have you taken a look at this? exterior ballistics
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    What is the most Historically Significant Cartridge?

    Sandwarrior, may I ask where do you get your data? According to all the books and essays I've read, the first spanish mauser was the 1892 model... still 4 years later than the 7x57 designed and adopted in 1888 by the german rifle testing commission in spandau, whithout Mauser imput. The first...
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    What is the most Historically Significant Cartridge?

    sandwarrior, the 8x57 (1888) predates the 7x57 (1893) mauser by five years... the 8x57 (designed by a german commission, not mauser) is the father of modern modern cases... the 12 mm case head is present in all the offspring, as well as the same basic design. Even the first 45 ACP cases were...
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    Range Report Anybody heard of "dispersing" .308 MG ammo?

    Cavim is indeed venezuelan ammo, most of it is not very good accuracy wise, and some lots are crap.
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    Range Report I'm amazed at the difference BC makes

    Sierra gives accurate BC numbers, but in velocity "bands". To get accurate results you need a program that can use several G1 BC values. Lapua (llike most manufacturers) used to test bullets only at shorter ranges, thus the high G1 BC values. When they are tested at longer ranges they come up...
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    Range Report G1 or G7

    Scope height has a very minor effect, and it is the SAME with any ballistic program... it is a simple math correction to correct sight offset, that is added (but totally independent) to the ballistic predictions.
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    Range Report G1 or G7

    Even with a normal program like the JBM, carefully selecting the G1 BC you can usually get 0.2-0.3 MOA max difference with a humble 308 in trajectory between G1 and G7 up to 1000 yds... that's about 2-3" at this distance, so it is not a really big deal considering that there are other more...
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    Range Report Twist rate article in Sniper

    But the shooter VERY often gets confused and cannot understand what it does... ;) If you read the old military manuals written by the best shooters of the time, you'll find pearls such as "humid air is more dense", incorrect "inclined fire" corrections, "1 MOA up for every 20ºF increase", etc.
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    Range Report Twist rate article in Sniper

    Thanks for posting the article. For ME, the entire article is the definition of "unscientific"...
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    Range Report Twist rate article in Sniper

    Remember you have to keep all other factors the same (or accurately correct for them) to claim that he "held/dialed less elevation and windage with the faster twist rates". This is the part most difficult to believe.
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    Range Report Twist rate article in Sniper

    +1000 I would take such claims with a huge dose of salt... Edited to add: he might be an excellent shooters, and perhaps has the best of intentions. But some people really don't know how to apply the scientific method and perhaps confuse "uncorrected data points" with breakthroughs.
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    Range Report LOS.... How much does it effect dope at elr

    Take a good read: exterior ballistics
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    Range Report 168 SMK vx 175 SMK

    You cannot predict POI variation at 100 yds based on calculated drop, what determines it (vertical and horizontal) is mostly barrel harmonics.
  20. T

    Rifle Scopes Optronika/Premier 5-25x56

    Is optronika making scopes for other brands? Or perhaps subassemblies, parts, etc.?
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