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Weatherby Select .300 Weatherby Magnum 180gr InterLock Ammo
.300 Weatherby Magnum • Weatherby • Hunting

Weatherby Select .300 Weatherby Magnum 180gr InterLock Ammo Ballistics

Brass Case • InterLock SP • MPN: H300180IL

Best Price
$2.81/rd
Compare Prices →
3240
FPS
4195
FT-LBS
.425
BC (G1)
180
GRAINS
InterL
BULLET
BRS
CASING

Trajectory @ 100yd Zero

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Muzzle Velocity
3240.0 fps
Projectile Weight
180.0 gr
Ballistic Coef.
0.425 G1
Zero Range
100.0 yards
Range Velocity Energy Drop
Muzzle 3240 fps 4196 ft-lb
25 yds 3179 fps 4041 ft-lb -0.8"
50 yds 3120 fps 3892 ft-lb -0.3"
75 yds 3062 fps 3748 ft-lb -0.0"
100 yds ⊕ 3004 fps 3608 ft-lb -0.0"
125 yds 2947 fps 3473 ft-lb -0.2"
150 yds 2891 fps 3343 ft-lb -0.7"
175 yds 2836 fps 3216 ft-lb -1.4"
200 yds 2781 fps 3093 ft-lb -2.4"
225 yds 2727 fps 2975 ft-lb -3.6"
250 yds 2674 fps 2860 ft-lb -5.2"
275 yds 2622 fps 2748 ft-lb -7.0"
300 yds 2569 fps 2640 ft-lb -9.2"
325 yds 2518 fps 2535 ft-lb -11.7"
350 yds 2467 fps 2434 ft-lb -14.6"
375 yds 2417 fps 2336 ft-lb -17.8"
400 yds 2367 fps 2241 ft-lb -21.4"
425 yds 2318 fps 2149 ft-lb -25.3"
450 yds 2269 fps 2059 ft-lb -29.7"
475 yds 2221 fps 1973 ft-lb -34.5"
500 yds 2174 fps 1890 ft-lb -39.7"

Product Overview

Weatherby's Select line offers hunters a practical entry point into their proprietary magnum cartridge. This 180-grain InterLock load launches at 3240 fps, producing 4195 ft-lbs of energy at the muzzle. The ammunition uses Norma brass cases known for their consistency and reloadability, paired with Hornady's proven InterLock bullet design that has taken game reliably for decades.

The InterLock bullet features a raised ring inside the jacket that mechanically locks the lead core in place during expansion. This prevents the core-jacket separation that can occur with conventional cup-and-core bullets at magnum velocities. The result is a bullet that mushrooms predictably while retaining most of its original weight, driving deep into the animal to reach vital organs. The 0.425 ballistic coefficient keeps the bullet flying true at distances where wind drift becomes a factor.

This load handles elk, mule deer, and similar game effectively out to 400 yards or more. The combination of velocity and bullet weight generates the kind of energy needed to anchor large animals quickly. Hunters who reload their ammunition will appreciate the quality brass, which can be resized and loaded multiple times. For those wanting genuine Weatherby performance without premium ammunition prices, this Select line offering delivers solid results in the field.

Strengths
  • Uses Norma brass cases that are known for excellent consistency and durability through multiple reloading cycles
  • InterLock ring mechanically locks core to jacket, preventing separation at magnum velocities
  • The 3240 fps velocity produces a flat trajectory with 4195 ft-lbs of muzzle energy
  • More affordable than Weatherby's Select Plus premium line while still using quality components
  • The 0.425 BC provides reasonable downrange performance for shots within 400 yards
Limitations
  • Exposed soft point tip can deform from magazine recoil during repeated chambering cycles
  • Lower ballistic coefficient than polymer-tipped alternatives limits extreme-range effectiveness
  • Traditional cup-and-core construction, even with InterLock, may not match bonded bullet penetration on heavy game
  • Availability can be inconsistent compared to more common calibers and manufacturers

All Weatherby Select .300 Weatherby Magnum 180gr InterLock Ammo Prices

DEALER QTY PRICE/RD
Black Basin Outdoors 200 $2.81
Black Basin Outdoors 100 $3.05

Price History

Average price across all tracked dealers
$2.89/rd
↓ $0.01 (0.5%) in the last 1Y
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