Sellier & Bellot SS109 vs M855 Q?

[Click Click Boom]

I came across some Sellier & Bellot SS109.(It is stamped: S&B 07 5.56x45)I know M855 and SS109 use the same bullet but can be loaded to different velocity. My question is, Is the Sellier & Bellot SS109 with the S&B head stamp as "HOT" as M855? From what I have gathered there are 2 differnt stamping on this load from S&B and the other marked load is the equal to M855.

 

[Derek Zeanah]

Ummm, 2 totally different bullets there. Different designs, different weights even.

 

[Click Click Boom]

Not acording to the Ammo Orcle on AR15.com. They are both green tip 62gr penatrator rounds.

http://www.ammo-oracle.com/body.htm

Scroll down.... It says that they both use the same bullet but the ss109 may or may not be loaded the same as M855. So, I was wondering if the S&B stuff as posted above is to the same specs as M855.

 

[Sans Authoritas]

SS109 is the NATO designation for the for the 62 grain tungsten-tip penetrator 5.56 round. M855 is the U.S. designation for the round.

-Sans Authoritas

 

[Derek Zeanah]

My bad.

 

[Click Click Boom]

So, this is a "almost" AP round?

 

[rbernie]

Yes - almost.

 

[Bartholomew Roberts]

It has slightly better penetration at longer distances; but it performs about like most ball ammo armor-wise.

M855 is SS109 ammo; but not all SS109 ammo is M855 if that helps There are additional specifications required to meet M855 standards that aren't required by SS109 - though I couldn't tell you what the differences are.

 

[Click Click Boom]

We just went full circle here!

Ok, I saw some posts on AR15.com that had indipendent tests of the S&B SS109 with the other case markings that were a litle hotter than published M855. I was wondering if anyone has any ME/MV on the S&B with the case marked as stated in the first post.

So, All M855 is SS109, but not all SS109 is M855, but some SS109 is M855..... Whos ond first.......

 

[Cesiumsponge]

Sans Authoritas:

SS109 is the NATO designation for the for the 62 grain tungsten-tip penetrator 5.56 round. M855 is the U.S. designation for the round.

Actually if I am not mistaken, the M855/SS109 is a 62gr mild steel core ammo.

It is the M955 that is a tungsten-carbide cored, black tipped AP ammo, and apparently rare as hen's teeth.

 

[Bartholomew Roberts]

Cesiumsponge is correct. The "penetrator" on M855 is just a 4.7gr steel insert.

 

[1911 guy]

My limited knowledge.

Others I'm sure know more about this than I do, but my understanding is this: nearly any ammy loaded with a 62gr bullet with a steel penetrator can be labeled "SS109". Only ammo loade with .62gr penetrator bullets AND meeting the U.S. MIL-STD requirements can be labeled M855.

So, all M855 is SS109.
Not all SS109 is M855.

 

[BozemanMT]

Remember you can't use steel core ammo at a lot of ranges.
just FYI