Underwood .45 Colt 135gr Extreme Defender Ammo Ballistics
Nickel-Plated Brass Case • Xtreme Defender
Underwood .45 Colt 135gr Extreme Defender Ammo Ballistics
Nickel-Plated Brass Case • Xtreme Defender
Trajectory @ 25yd Zero
| Range | Velocity | Energy | Drop |
|---|---|---|---|
| Muzzle | 1410 fps | 596 ft-lb | — |
| 5 yds | 1379 fps | 570 ft-lb | -0.3" |
| 10 yds | 1350 fps | 547 ft-lb | -0.2" |
| 15 yds | 1323 fps | 525 ft-lb | -0.0" |
| 20 yds | 1296 fps | 504 ft-lb | +0.0" |
| 25 yds ⊕ | 1270 fps | 484 ft-lb | +0.0" |
| 30 yds | 1246 fps | 465 ft-lb | -0.1" |
| 35 yds | 1222 fps | 448 ft-lb | -0.2" |
| 40 yds | 1199 fps | 431 ft-lb | -0.3" |
| 45 yds | 1178 fps | 416 ft-lb | -0.6" |
| 50 yds | 1158 fps | 402 ft-lb | -0.9" |
| 55 yds | 1138 fps | 388 ft-lb | -1.2" |
| 60 yds | 1120 fps | 376 ft-lb | -1.6" |
| 65 yds | 1103 fps | 365 ft-lb | -2.1" |
| 70 yds | 1087 fps | 354 ft-lb | -2.7" |
| 75 yds | 1072 fps | 344 ft-lb | -3.3" |
| 80 yds | 1058 fps | 335 ft-lb | -4.0" |
| 85 yds | 1044 fps | 327 ft-lb | -4.8" |
| 90 yds | 1031 fps | 319 ft-lb | -5.7" |
| 95 yds | 1019 fps | 311 ft-lb | -6.6" |
| 100 yds | 1008 fps | 304 ft-lb | -7.7" |
Product Overview
Underwood's .45 Colt Extreme Defender fires a 135-grain Lehigh Defense solid copper bullet at 1,410 fps, generating 596 ft-lbs of muzzle energy. Those numbers are dramatically higher than typical .45 Colt loads. For context, the Fort Scott 225gr TUI produces 377 ft-lbs and the Sierra Sports Master 225gr JHP manages 361 ft-lbs. The Extreme Defender nearly doubles the energy output while staying within SAAMI pressure specs for standard .45 Colt revolvers.
The Lehigh Xtreme Defender bullet uses precision-machined flutes cut into a solid copper body. These flutes redirect tissue laterally on impact, creating a permanent wound cavity comparable to a hollow point but without any expansion. The bullet cannot clog with clothing or drywall because there is no cavity to obstruct. The nickel-plated brass case resists corrosion and improves feeding. At only 135 grains, felt recoil is noticeably less than heavier 225-250 grain loads despite the higher velocity.
This is a dedicated self-defense round built for .45 Colt revolvers and lever guns. The combination of high velocity, deep penetration, and barrier-blind performance makes it one of the most effective defensive loadings available in this caliber. Shooters who carry a .45 Colt revolver for personal protection will appreciate the reduced recoil and flat trajectory compared to traditional heavy-bullet loads. The solid copper design also makes it legal in states that restrict hollow point ammunition.
- 596 ft-lbs of muzzle energy is nearly double most .45 Colt defensive loads
- Fluted solid copper bullet creates wound channels without relying on expansion
- 135-grain weight at 1,410 fps produces less felt recoil than 225-250gr loads despite higher energy
- Nickel-plated brass resists corrosion during extended carry
- Legal where hollow points are restricted since the bullet technically does not expand
- Premium pricing puts it well above budget options like Federal Champion or American Eagle
- The light 135-grain bullet may overpenetrate in some scenarios due to its high velocity and solid construction
- Limited real-world terminal data compared to established JHP designs from Federal or Hornady
Similar Products Compared
| PRODUCT | WEIGHT | TYPE | VELOCITY | ENERGY | BC | PRICE/RD |
|---|---|---|---|---|---|---|
| 135 gr | Xtreme Defender | 1410 fps | 596 ft-lbs | 0.095 | N/A | |
| 225 gr | TUI | 869 fps | 377 ft-lbs | 0.12 |
$1.48
400 Rounds
|
All Underwood .45 Colt 135gr Extreme Defender Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
|---|
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