What do ammunition-type labels establish?
M193, M855, SS109, and Mk 262 labels require exact manufacturer verification. A commercial military-pattern label does not establish compliance with a particular military specification or equivalence with another product.
FMJ means full metal jacket; OTM means open-tip match. Those construction labels do not certify terminal performance, accuracy, or equipment compatibility. Check the exact manufacturer's product identifier and construction rather than assigning one ballistic profile to a category.
Comparing identified products
PMC identifies 5.56X as 55gr FMJ-BT and 5.56K as 62gr LAP in the linked product pages below. These are separate manufacturer identifiers, not specifications for every commercial military-pattern load.
See 5.56 ballistic comparison evidence and AR-15 ammunition comparisons, without treating either category as an ammunition-use authorization.
Verify an identified 55gr FMJ load
PMC's 5.56X product page identifies a 55gr FMJ-BT load. That identifier and construction do not establish a universal military-specification velocity or terminal-performance threshold.
Verify exact-load manufacturer specifications rather than treating every military-pattern commercial product as identical.
Tracked listings: 5.56 FMJ. A category label does not establish current stock or range permission.
Verify an identified 62gr load
PMC's 5.56K product page identifies a 62gr LAP load. Verify the exact product's construction and manufacturer guidance. A green-tip or military-pattern label alone does not establish equivalence with another load.
This page provides no matched barrier test, terminal-performance series, or universal rifling-twist rule for all 62gr ammunition. Cartridge weight alone does not establish stabilization or firearm compatibility.
Follow the range's actual ammunition rules. A magnet response alone does not identify bullet construction or grant permission. Verify current jurisdiction-specific hunting requirements separately with qualified sources.
Tracked listings: 5.56 green-tip category. The category is not a legal or compatibility authorization.
Match and open-tip labels
An OTM label does not establish equivalence with military Mk 262 ammunition. Verify the exact manufacturer identifier, bullet construction, and stated test conditions. The 5.56 match-grade category is a listing category, not an accuracy certification.
This page provides no matched test establishing a universal ballistic coefficient, fragmentation threshold, rifling-twist requirement, magazine reliability, or price hierarchy for all 77gr loads.
Soft-point construction
A soft-point label describes exposed lead at the bullet's nose, not a universal penetration or expansion result. Verify the exact manufacturer's construction and performance claims.
Do not infer a bonded design from a product-family name or bullet weight. This page provides no matched barrier-test series establishing that all soft points retain their weight or qualify for a defensive or hunting use.
Polymer-tip construction
A polymer-tip label describes a tip component, not a shared terminal-performance specification. A product family can contain different bullet constructions and cartridge designations.
This page provides no matched test establishing a common expansion velocity, fragmentation result, or short-barrel suitability for every polymer-tipped load. Verify the exact manufacturer's product identifier and performance claims separately.
How can you tell 5.56 ammo types apart?
- Manufacturer identifier. Check the exact product identifier and cartridge designation against the manufacturer's specifications and original package labeling.
- Color and shape. Tip color or bullet appearance alone does not establish load identity, construction, terminal performance, or compatibility.
- Magnet response. A response does not distinguish a steel penetrator from a steel-containing jacket or certify range permission. Follow the range's actual ammunition rules.
- Ambiguous identification. If the exact ammunition identity cannot be established, do not infer it from appearance or an incomplete headstamp.
The cartridge category does not certify firearm compatibility. Verify the exact designation against the firearm manufacturer's instructions; do not infer permission from a chamber-family or platform label. See 5.56 and .223 comparison boundaries.
What does a construction category establish?
A construction label does not establish a firearm-use recommendation, fragmentation threshold, hunting suitability, or precision winner. Verify the exact manufacturer's construction and performance claims separately.
This page supplies no matched terminal-performance test or reproducible barrel-length series supporting a defensive load selection. It also supplies no exact-load ballistic coefficient census establishing a universal 77gr winner.
Follow the equipment manufacturer's guidance and the range's actual rules. Verify current jurisdiction-specific hunting requirements separately with qualified sources. Missing compatibility or performance evidence is not permission to infer it.
Compare 5.56 NATO by bullet weight: 55gr FMJ → | 62gr → | 77gr → | 5.56 NATO price history →
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