2008年5月22日 · Granted the weight is the same, the ss109 is a long bullet and can change pressures significantly using the shorter bullets (normal 62gr FMJBT) data because of seating depth, correct me if i'm wrong According to Speer its a duplicate of the M855 service bullet.

2005年10月17日 · The SS109 is the name Europe gave the M855. SS109 "usually" meets the NATO specs(you have to look for that crosshair circle). The M855 is held to higher tolerances than the SS109. The US M855 is usually more accurate because the tolerances are more strict than the SS109 counter part. Example the steel core being centered better.

2017年3月28日 · ALL M855 cartridges use the SS109 projectile. M855 is a US military nomenclature for the loaded round using the SS109 projectile. Its called M855 outside of the factory in civilian hands because its specifically exempt from the Armour Piercing rule (as is the 3.06 M2AP). If not, and call it the "ss109 cartridge" you would not be allowed to own ...

2010年1月11日 · i shoot ss109's with 24.5gr of AA2230, using a CCI 450 primer in LC brass, OAL is 2.260. The results are a consistent 2 moa from a 1:7 16" barrel. Posted: 1/31/2010 3:32:01 AM EST

2013年10月7日 · I use ss109's almost exclusively, and get sub moa all day with the right powder first off, use data for 69 grain bullets, it comes down to surface area as opposed to weight with the steel core penetrator second, powder selection is key. CFE223 is my go to powder for my favorite sub moa recipe, which as is follows: ss109 25.7 grn CFE223

2008年4月9日 · 62gr SS109 with its mild steel core is designed to maintain lethality at a greater range, superior light barrier penetration, and armor defeating capabilities. For a vastly superior explanation of this and much else, go look at The Ammo Oracle.

2004年11月30日 · SS109 has really marginal penetration on objects harder than the bullet itself. I did some 40-50 yard tests on hardened steel plates and M193 by far out penetrated the SS109. The problem with SS109/M855 ammo at closer ranges is that the heavier bullet has a lower velocity. And velocity is the whole reason behind the success of a small caliber ...

2013年1月5日 · Was reading alot about the CFE223, and was amazed at the velocities achieved in 5.56/.223 loadings. But since deciding to move ate rifles after only shooting/reloading pistols, I have noticed very little manufacturer supplied data for loading military surplus bullets like the 62gr SS109 and the 147gr surplus bullets for NATO 7.62.

2010年6月24日 · Long bullets need faster twists for adequate stabilization, and frankly 1:12 is just about as slow as you want for 55gr FMJs (it works OK with .22LR rounds) 62gr bullets, especially the longer SS109 type, need at least 1:10, preferably faster, to get the bullets properly stabilized.

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