Ammo Types Explained: FMJ, JHP, Subsonic and More

Match the bullet to the job: cheap FMJ to practice, JHP for defense, soft point to hunt, subsonic behind a suppressor, frangible on steel up close.

Match the bullet to the job. Practice and plink with cheap FMJ (full metal jacket). Load JHP (jacketed hollow point) for self-defense — it expands to transfer energy and limit over-penetration. Hunt with soft point or ballistic-tip bullets for controlled expansion. Shoot subsonic when running a suppressor, and use frangible ammo on steel up close. Search or sort the full guide below.

Ammo types & bullet types chart

Type to filter, or click a column to sort.

Ten ammunition types with their common abbreviations, how each bullet is built and what each one is actually best used for.
Every figure here is published data, sourced on the page itself. This card shows the first 10 of 14 rows; the full table is on the page. Popular Ammo · popularammo.com/ammo-types-explained/
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Here is how I read this chart

Every number in this table is a published figure, copied from the source named underneath it — none of it is my own measurement. The card shows the top rows; the complete table is further down this page. Read across a row to compare one entry, and down a column to compare them all on the same measure.

Type Also called What it is Best for
Everyday & defense
Full Metal Jacket FMJ / ball A lead core fully wrapped in a copper jacket; does not expand. Range practice, plinking, training — cheapest per round
Jacketed Hollow Point JHP / HP A hollow nose cavity that mushrooms open on impact. Self-defense & duty — expands, dumps energy, limits over-penetration
Total Metal Jacket TMJ / FEB Bullet fully encapsulated, including the base — no exposed lead. Indoor ranges — less airborne lead
+P / +P+ Overpressure Loaded above standard pressure for more velocity and energy. Defense in firearms rated for it — more recoil
Frangible — A compressed metal-powder bullet that disintegrates on hard surfaces. Close-range steel targets & training — cuts ricochet
Hunting
Soft Point SP / JSP An exposed soft-lead tip over a jacket for controlled expansion. Hunting — deeper penetration than a hollow point
Ballistic Tip Polymer tip A polymer tip over a hollow point — flat-shooting, reliable expansion. Varmint & big-game hunting at distance
Bonded / Controlled-Expansion Bonded Jacket chemically bonded to the core so the bullet holds together. Larger game — deep, reliable penetration through bone
Lead Round Nose LRN A plain, unjacketed lead bullet with a rounded nose. Cheap revolver practice & small game
Precision & specialty
Hollow-Point Boat Tail HPBT / match A tapered base plus open tip for a high ballistic coefficient (match ammo, not a defense bullet). Long-range target & precision
Wadcutter / Semi-Wadcutter WC / SWC A flat-fronted target bullet that cuts clean holes in paper. Bullseye & revolver target shooting
Subsonic — Ammo that stays below the speed of sound (~1,100 fps), avoiding the sonic crack. Suppressed shooting & quiet practice
Green Tip M855 / SS109 A 62-grain 5.56 bullet with a steel-tip penetrator (a penetrator, not true armor-piercing). Barrier penetration & general 5.56 use
Tracer — A pyrotechnic charge in the base that burns visibly in flight. Restricted; fire risk — check local law and range rules
Ammo types & bullet types chart. Type, Also called, What it is, Best for. Popular Ammo · popularammo.com/ammo-types-explained/
Swipe the table sideways to see every column.

How to pick the right ammo

Think in three buckets. Train with FMJ because it is cheap and shoots to a similar point of impact as your defensive load. Defend with quality JHP that is proven to feed in your gun — test at least a box. Hunt with soft-point, bonded, or ballistic-tip bullets sized to the game so they expand and penetrate reliably. Then layer in specialty rounds — subsonic for a can, frangible for close steel — as your shooting calls for them.

Ammo type FAQ

FMJ vs hollow point — what is the difference?

FMJ is a fully jacketed bullet that does not expand; it is cheap and best for target practice, but it over-penetrates and is a poor defensive choice. A jacketed hollow point (JHP) has a hollow nose that expands on impact, transferring more energy and reducing the risk of passing through the target. Use FMJ to train and JHP to defend.

What ammo is best for self-defense?

A quality jacketed hollow point that reliably feeds and cycles in your specific firearm. Expansion transfers energy and limits over-penetration, and premium bonded or controlled-expansion JHPs perform most consistently. Always test a box or two before you trust a load.

Is green-tip (M855) ammo armor-piercing?

Not by the legal definition. M855 “green tip” has a steel-tip penetrator over a lead core, which improves penetration through barriers, but it is not classified as armor-piercing ammunition. It is a general-purpose 5.56 round.

What is subsonic ammo for?

Subsonic ammunition travels below the speed of sound, so it avoids the loud sonic “crack” a supersonic bullet makes. Paired with a suppressor it is dramatically quieter, which is why heavy .300 Blackout and standard .22 LR subsonic loads are popular for suppressed shooting.

What does +P mean?

+P ammunition is loaded to a higher-than-standard pressure for more velocity and energy. Only fire it in a firearm rated for +P, and expect more recoil and muzzle blast.

This guide is educational. Always use ammunition appropriate for your firearm, follow the manufacturer’s specifications, obey all local and federal laws (some bullet types are restricted in certain areas), and practice safe handling. This is not reloading or load data.