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9mm Luger — 68 Grain XTREME DEFENDER Solid Monolithic — 200-Round Box
Description
9mm Luger defensive cartridge loaded with a 68-grain solid monolithic projectile (full-metal, non-traditional soft-point — single-piece construction).
Designed for barrier/penetration performance, consistent feeding, and high retained weight. Brass-cased, boxer-primed, packaged in 200-round boxes for defensive or specialty use.
Ballistic data (typical / estimated)
| Bullet weight | 68 grains |
|---|---|
| Bullet type | Solid monolithic (single-piece solid projectile) |
| Muzzle velocity (est.) | ~1,450 – 1,700 ft/s (depends on barrel length) |
| Muzzle energy (est.) | ~318 – 437 ft·lb (68 gr @ 1,450–1,700 ft/s) |
| Sectional density (SD) | ~0.077 (68 gr, .355″) |
| Ballistic coefficient (BC) | ~0.12 – 0.18 (monolithic 9mm, profile-dependent) |
Technical specifications
| Cartridge | 9×19mm Parabellum / 9mm Luger (SAAMI) |
|---|---|
| Bullet diameter | 0.355 in (9.02 mm) |
| Case length | ≈0.754 in (19.15 mm) |
| Overall length (OAL) | ≈1.169 in (29.69 mm) — typical 9mm OAL |
| Primer | Small pistol, boxer-style (centerfire) |
| Case material | Brass (reloadable — inspect cases before reloading) |
| Packaging | 200 rounds per box |
| Intended platforms | Semi-automatic pistols and carbines chambered in 9mm (verify feed reliability in specific models) |
Usage
Primary role: self-defense / law-enforcement / barrier-penetration scenarios where deep penetration and high retained mass are required.
Also used in specialty applications where a monolithic solid is preferred (e.g., some tactical uses and where over-penetration trade-offs are accepted).
Not ideal for situations where controlled expansion and maximum energy transfer into soft tissue are the top priority. Observe local laws and range rules when purchasing and using.
Performance notes
- Penetration: Solid monolithic projectiles typically penetrate deeply and retain most of their mass — good barrier performance (doors, auto glass, light cover).
- Terminal behavior: Minimal expansion compared with hollow-point/expanding projectiles; wound channel is usually narrower and deeper. This increases the risk of over-penetration in some scenarios.
- Accuracy: Light, high-velocity 68gr projectiles can be very accurate out of match barrels; groups depend on pistol/carbines and barrel length.
- Recoil & muzzle blast: Lighter bullet with higher velocity can produce a snappier recoil impulse and perceptible muzzle blast compared with heavier standard 115–124 gr 9mm loads.
- Feeding & reliability: Monolithic solids are typically robust and feed reliably, but verify in your firearm before duty or carry use.
- Reloading: Brass boxer-primed cases are usually reloadable — ensure primers and case integrity are acceptable before reloading.
Summary
UNDERWOOD 9mm 68gr XTREME DEFENDER Solid Monolithic (200-round box, UPC 816874022808) is a specialized defensive cartridge built around a single-piece solid projectile.
Expect high retained weight and strong barrier performance with estimated muzzle velocities in the ~1,450–1,700 ft/s range and muzzle energy roughly ~318–437 ft·lb.
This round is intended where deep penetration and reliable feeding are priorities — however, it offers limited expansion compared with hollow-point defensive ammunition and therefore carries a greater over-penetration consideration. Test for function in your firearm and follow all safety and legal requirements.
Additional information
| Caliber | |
|---|---|
| Bullet Weight | |
| Bullet Type | |
| Case | |
| Number of Rounds | 200 |
