Underwood Custom Competition .338 Lapua Magnum 300gr HPBT Match Ammo Ballistics
Brass Case • HPBT
Underwood Custom Competition .338 Lapua Magnum 300gr HPBT Match Ammo Ballistics
Brass Case • HPBT
Trajectory @ 100yd Zero
| Range | Velocity | Energy | Drop |
|---|---|---|---|
| Muzzle | 2700 fps | 4857 ft-lb | — |
| 25 yds | 2670 fps | 4751 ft-lb | -0.7" |
| 50 yds | 2641 fps | 4648 ft-lb | -0.1" |
| 75 yds | 2612 fps | 4546 ft-lb | +0.1" |
| 100 yds ⊕ | 2583 fps | 4447 ft-lb | -0.0" |
| 125 yds | 2554 fps | 4349 ft-lb | -0.4" |
| 150 yds | 2526 fps | 4252 ft-lb | -1.2" |
| 175 yds | 2498 fps | 4158 ft-lb | -2.3" |
| 200 yds | 2470 fps | 4065 ft-lb | -3.7" |
| 225 yds | 2442 fps | 3973 ft-lb | -5.5" |
| 250 yds | 2414 fps | 3884 ft-lb | -7.7" |
| 275 yds | 2386 fps | 3795 ft-lb | -10.2" |
| 300 yds | 2359 fps | 3709 ft-lb | -13.1" |
| 325 yds | 2332 fps | 3624 ft-lb | -16.5" |
| 350 yds | 2305 fps | 3540 ft-lb | -20.2" |
| 375 yds | 2278 fps | 3458 ft-lb | -24.3" |
| 400 yds | 2251 fps | 3377 ft-lb | -28.8" |
| 425 yds | 2225 fps | 3298 ft-lb | -33.8" |
| 450 yds | 2198 fps | 3221 ft-lb | -39.2" |
| 475 yds | 2172 fps | 3144 ft-lb | -45.0" |
| 500 yds | 2146 fps | 3069 ft-lb | -51.3" |
Product Overview
The Underwood Custom Competition .338 Lapua Magnum 300gr HPBT Match represents a premium option from an American manufacturer known for performance-focused ammunition. With a 0.768 G1 ballistic coefficient and 2,700 fps muzzle velocity generating an impressive 4,857 ft-lbs of muzzle energy, this load is engineered for serious precision rifle competitors. The heavy 300-grain boat-tail hollow point bullet provides exceptional wind resistance and energy retention at distances where other ammunition begins to struggle.
ELR competitors and precision rifle enthusiasts will appreciate Underwood's focus on maximum performance. The company's willingness to push velocities while maintaining consistency translates to flatter trajectories and more retained energy at extreme distances. The high ballistic coefficient ensures that the bullet maintains velocity better than lighter projectiles, reducing time-of-flight and minimizing wind deflection errors—critical factors when engaging targets at 1,500 yards and beyond.
For shooters who want an alternative to the major ammunition manufacturers, Underwood offers American-made quality with a focus on performance. The Custom Competition line reflects the company's commitment to serving serious shooters rather than casual consumers. Whether competing in organized precision rifle matches, developing skills for professional applications, or pushing the limits of personal long-range capability, this ammunition delivers the performance that demanding shooters expect.
- Excellent 0.768 G1 ballistic coefficient for extreme-range performance
- Strong 4,857 ft-lbs muzzle energy—among the highest available
- Heavy 300-grain bullet maintains velocity at extreme distances
- American-made by performance-focused manufacturer
- Designed specifically for competitive precision shooting
- Good velocity (2,700 fps) for heavy bullet weight
- Smaller manufacturer may have limited availability
- Premium pricing for boutique ammunition
- Heavy bullet produces significant recoil
- Match design not suitable for hunting
- May not have same track record as established match brands
All Underwood Custom Competition .338 Lapua Magnum 300gr HPBT Match Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
|---|---|---|---|---|---|
| Black Basin Outdoors | 10 | $66.98 | $10.99 | $77.97 | $7.80 |