No way to answer. What type of steel? What range? What weapon is being fired? What barrel length?
Armour piercing at 400 meters
M855 has a green tip painted on the bullet.
The cartridge most commonly used with the M4 is the 62 grain M855 or SS109.
M855 62 grain ball.
The M16A2, M16A4, M4, M4A1, Diemaco C7 and C8, etc. have a 1 turn in 7 inches rifling twist. Although 1 turn in 9 inches is actually the ideal rifling twist for the 62 grain M855/SS109 NATO round, 1 in 7 was chosen because it can fire the 64 grain M856/L110 tracer with the same performance as it would the M855/SS109. It is also advantageous in that it can fire heavier cartridges, such as the 77 grain Mk 262 cartridge, which would be too heavy for a 1 in 9 barrel to stabilise.
The MK318 MOD 0 Special Operations Science and Tactics round has no powder change. It is the bullet design itself that is improved which gives it advantages when firing through glass or metal barriers. It is in fact a variant of the Federal Trophy Bonded Bear Claw round designed for big game hunting using open tipped bullets.
Your Westernfield M855 was made by Mossberg for Montgomery Wards Dept. Store. Since it has no serial number it was made before 1968. No serial numbers were required on firearms before the 1968 Federal Gun Act.
You can expect the value of your firearm to be between 50-125 dollars depending on the overall condition of your westernfield.
It's more a matter of where it's manufactured and by whom than the caliber. Several non-NATO nations also manufacture NATO standard ammo. For example, Russia manufactures the 5.56x45 and 7.62x51 to go along with export versions of NATO caliber firearms they manufacture, such as the AK-101. Their steel cased rounds are much less expensive than, say, American made M855 ammo.
Depends on WHICH powder, and WHICH bullet. Different powders use different grain weight, and changing bullet weight will also require changing powder weight. Most of the powder manufacturers (such as Alliant, Hogdon, etc) have a website with reloading data for different powders and cartridges. IF YOU ARE RELOADING- please do not accept internet advice for any load that cannot be referred back to a company website. For all you know, I am 10 yrs old, and Mom does not know I am on the computer, and think it would be funny to give you random, dangerous misinformation. (I am not- but you have no way of knowing that)
By the manufacturer's headstamp (usually "LC" or "ADCOM") and the presence of the NATO headstamp (vs. the older M193, which did not have this).Additionally, there will be a green coloured ring around the projectile (although this may sometimes wear off over time).
M193 - BallM196 - TraceM199 - DummyM200 - Blank (Violet tip and 7 petal rose crimp)M855 - Ball (Green Tip)M856 - Tracer (Red Tip)M862 - Short Range Training Ammunition (Plastic with a Blue Tip)
depends on the rifle old M16s used to have 1:12 this was designed to stabilize 55gr projectiles in arctic conditions, or regular conditions for that matter. Now-a-days....were using heavier bullets. 55 and 69 grain projectiles. m193 and m855. The military commonly uses 1:7 twist rate. My RRA rifle has a 1:9 twist rate and I haven't found a bullet it wont stabilize. I have shot 75 gr. (too big to feed from the mag) and a 40 gr v-max. I dont want to go heavier or lighter...so 1:9 is perfect for me.