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7mm Calibers Comparison

7mm Calibers Comparison

The 7mm caliber range, encompassing bullet diameters from .277 to .285 inches, includes a variety of cartridges widely used in both hunting and long-range shooting. These calibers are popular for their versatility, offering a balance between manageable recoil, flat trajectories, and effective terminal performance. Here's a summary of the key calibers in this range and their applications:


  • .270 Winchester (.277 inch): Range: Medium to long-range (up to 500-600 yards). Applications: Primarily used for hunting deer, elk, and similar-sized game. It's known for its flat trajectory and moderate recoil, making it a favorite among hunters for medium to large game in open country.

  • .270 WSM (Winchester Short Magnum) (.277 inch): Range: Long-range (up to 600-800 yards). Applications: Similar to the .270 Winchester but with a shorter case and higher velocity, offering improved performance at longer ranges. It’s effective for hunting larger game like elk and moose, especially at extended distances.

  • .280 Remington (.284 inch): Range: Medium to long-range (up to 500-700 yards). Applications: A versatile cartridge for hunting a wide variety of North American game, from deer to elk. It offers performance similar to the .270 Winchester but with a slightly larger bullet diameter, allowing for heavier bullet options.

  • .280 Ackley Improved (.284 inch): Range: Long-range (up to 700-800 yards). Applications: An improved version of the .280 Remington, providing higher velocities and better long-range performance. It’s popular for hunting larger game at extended distances, with increased accuracy and energy retention.

  • 7mm-08 Remington (.284 inch): Range: Medium-range (up to 400-500 yards). Applications: A popular choice for hunting deer and similar-sized game. It offers lower recoil than the .270 Winchester and .280 Remington, making it suitable for youth and recoil-sensitive shooters while still providing adequate power for medium game.

  • 7mm Remington Magnum (.284 inch): Range: Long-range (up to 800-1000 yards). Applications: Known for its long-range capabilities and power, it is widely used for hunting large game like elk, moose, and bears. The 7mm Rem Mag is also popular in long-range shooting competitions due to its flat trajectory and high energy retention.

  • 7mm WSM (Winchester Short Magnum) (.284 inch): Range: Long-range (up to 700-900 yards). Applications: Offers performance similar to the 7mm Remington Magnum but in a shorter, more efficient case. It’s suitable for hunting large game at long distances and is valued for its accuracy and efficiency.

  • 7mm SAUM (Short Action Ultra Magnum) (.284 inch): Range: Long-range (up to 700-900 yards). Applications: Designed for short-action rifles, it provides magnum-level performance in a more compact package. It’s effective for hunting large game at extended ranges with slightly less recoil than the 7mm Rem Mag.

  • 7mm Weatherby Magnum (.284 inch): Range: Very long-range (up to 1000+ yards). Applications: A high-velocity, flat-shooting cartridge ideal for long-range hunting of large game. It’s known for its superior downrange energy and velocity, making it a favorite among long-range hunters and shooters.

  • 7mm STW (Shooting Times Westerner) (.284 inch): Range: Extreme long-range (up to 1200 yards). Applications: Developed for ultra-long-range hunting, the 7mm STW is capable of taking down large game at extreme distances. It’s one of the most powerful 7mm cartridges available, offering high velocity and energy retention.

  • .284 Winchester (.284 inch): Range: Medium to long-range (up to 600-700 yards). Applications: An efficient and versatile cartridge, originally designed for short-action rifles. It’s suitable for hunting medium to large game and is also used in some long-range shooting competitions.

  • 7mm RUM (Remington Ultra Magnum) (.284 inch): Range: Extreme long-range (up to 1300+ yards). Applications: One of the most powerful 7mm cartridges, the 7mm RUM is ideal for long-range hunting of the largest game, including elk and moose. It delivers extremely high velocity and energy, with excellent long-range ballistics.


Summary of Applications:

  • Medium Game (Deer, Antelope): .270 Winchester, 7mm-08 Remington, .280 Remington

  • Large Game (Elk, Moose, Bears): 7mm Remington Magnum, .270 WSM, 7mm WSM, 7mm RUM

  • Long-Range Shooting: 7mm Remington Magnum, 7mm STW, .280 Ackley Improved, 7mm RUM

  • Youth/Recoil-Sensitive Shooters: 7mm-08 Remington

Comparison Table 7 mm Calibers

The following table compares the key characteristics of all 7mm rifle calibers including rifle calibers with a diameter between .277 and .285 Inch. The rank shows the popularity of the rifle caliber in our community.

Caliber
Rank
Avg. Energy (E0)
Diameter
Avg. Bullet Weight (gr)
Case Capacity (GoW)
Average Charge
Average Velocity (V0)
Case Length (l3)
Max. C.O.L
Suitable Bullets
.27 Nosler
3897 Joule
0.277
128
98.4
73.4gr | 4.75g
3138fps | 957m/s
2.59" | 65.8mm
3.34" | 84.8mm
184
.270 WSM
3656 Joule
0.277
128
79.5
60.8gr | 3.94g
3057fps | 932m/s
2.09" | 53.1mm
2.86" | 72.6mm
172
.270 Weath. Mag.
3693 Joule
0.277
128
82
62.6gr | 4.06g
3055fps | 931m/s
2.55" | 64.7mm
3.3" | 83.7mm
172
.270 Win.
3346 Joule
0.277
128
67
51gr | 3.31g
2942fps | 897m/s
2.54" | 64.5mm
3.34" | 84.8mm
172
.277 Fury
3113 Joule
0.277
128
54
40gr | 2.59g
2812fps | 857m/s
2.02" | 51.2mm
2.7" | 68.6mm
172
.277 Fury (Commercial)
2924 Joule
0.277
128
54
39.6gr | 2.56g
2751fps | 839m/s
2.02" | 51.2mm
2.7" | 68.6mm
171
.28 Nosler
4096 Joule
0.284
149
97
71.9gr | 4.66g
2985fps | 910m/s
2.59" | 65.8mm
3.34" | 84.8mm
286
.280 Ackley Improved
3648 Joule
0.284
148
74
54.8gr | 3.55g
2854fps | 870m/s
2.54" | 64.5mm
3.33" | 84.6mm
271
.280 Rem.
3349 Joule
0.284
149
67.9
49.2gr | 3.19g
2722fps | 830m/s
2.54" | 64.5mm
3.33" | 84.6mm
267
.284 Win.
3339 Joule
0.283
146
66
47.1gr | 3.05g
2774fps | 846m/s
2.17" | 55.1mm
2.8" | 71.1mm
232
6.8 Western
3609 Joule
0.278
136
74
57.5gr | 3.73g
2960fps | 902m/s
2.02" | 51.3mm
2.96" | 75.1mm
40
6.8 mm Rem. SPC
1942 Joule
0.277
123
34
22.1gr | 1.43g
2347fps | 715m/s
1.69" | 42.9mm
2.28" | 58mm
120
7 mm B.R. Rem.
2409 Joule
0.284
146
39.5
28.8gr | 1.86g
2372fps | 723m/s
1.51" | 38.4mm
2.38" | 60.3mm
232
7 mm Blaser Mag
3784 Joule
0.284
148
82.5
63.2gr | 4.1g
2921fps | 891m/s
2.3" | 58.5mm
3.3" | 83.8mm
268
7 mm Exp. Rem.
3311 Joule
0.284
148
67.5
48.5gr | 3.15g
2689fps | 820m/s
2.54" | 64.5mm
3.33" | 84.6mm
268
7 mm KM Katzmaier
4292 Joule
0.284
149
112.5
84.8gr | 5.5g
3088fps | 941m/s
2.72" | 69.1mm
3.72" | 94.5mm
269
7 mm Mag Fl. H.& H.
2852 Joule
0.284
148
62
42.3gr | 2.74g
2502fps | 763m/s
2.5" | 63.5mm
3.26" | 82.8mm
267
7 mm PRC
3927 Joule
0.284
152
82
64gr | 4.14g
2899fps | 884m/s
2.28" | 57.9mm
3.34" | 84.8mm
268
7 mm Rem. Mag.
3801 Joule
0.284
148
82
61.1gr | 3.96g
2906fps | 886m/s
2.5" | 63.5mm
3.29" | 83.6mm
267
7 mm Rem. SA Ultra Mag
3667 Joule
0.284
148
72.6
53.6gr | 3.47g
2803fps | 855m/s
2.03" | 51.5mm
2.82" | 71.6mm
263
7 mm Rem. Ultra Mag
3927 Joule
0.284
148
112
83.5gr | 5.41g
2942fps | 897m/s
2.85" | 72.4mm
3.6" | 91.4mm
267
7 mm STW
3967 Joule
0.284
148
97
71.8gr | 4.65g
2900fps | 884m/s
2.85" | 72.4mm
3.65" | 92.7mm
269
7 mm WSM
3808 Joule
0.284
148
81.1
60.3gr | 3.91g
2929fps | 893m/s
2.09" | 53.1mm
2.86" | 72.6mm
262
7 mm Weath. Mag.
3909 Joule
0.284
148
87
63.7gr | 4.13g
2930fps | 893m/s
2.55" | 64.7mm
3.36" | 85.3mm
268
7 mm-08 Rem.
3038 Joule
0.284
148
55
39.8gr | 2.58g
2623fps | 800m/s
2.04" | 51.7mm
2.8" | 71.1mm
258
7 x 33 Sako
1238 Joule
0.284
148
23
12.3gr | 0.8g
1983fps | 605m/s
1.31" | 33.3mm
1.75" | 44.5mm
101
7 x 44 Penna
1748 Joule
0.277
124
32.7
21gr | 1.36g
2124fps | 647m/s
1.75" | 44.5mm
2.36" | 59.9mm
133
7 x 50 R
1912 Joule
0.285
146
34.5
22.4gr | 1.45g
2084fps | 635m/s
1.94" | 49.3mm
2.68" | 68mm
239
7 x 57
3116 Joule
0.285
148
59.5
43.6gr | 2.83g
2646fps | 807m/s
2.24" | 57mm
3.07" | 78mm
260
7 x 57 R
2913 Joule
0.285
149
60
43gr | 2.78g
2576fps | 786m/s
2.24" | 57mm
3.07" | 78mm
261
7 x 61 S&H (Super)
3601 Joule
0.285
148
77.6
57.5gr | 3.73g
2819fps | 859m/s
2.4" | 61mm
3.29" | 83.6mm
262
7 x 64 Brenneke
3434 Joule
0.285
149
69
50.7gr | 3.29g
2767fps | 844m/s
2.52" | 64mm
3.31" | 84mm
260
7 x 65 R Brenneke
3295 Joule
0.285
148
69.8
50.2gr | 3.25g
2690fps | 820m/s
2.56" | 65mm
3.29" | 83.6mm
260
7 x 66 SE v. Hofe
3995 Joule
0.285
149
93
68.2gr | 4.42g
2991fps | 912m/s
2.6" | 66mm
3.31" | 84mm
256
7 x 72 R
2408 Joule
0.285
149
54
36.1gr | 2.34g
2334fps | 711m/s
2.83" | 71.9mm
3.62" | 92mm
263
7 x 75 R SE v. Hofe
3644 Joule
0.285
149
81
60gr | 3.88g
2852fps | 869m/s
2.95" | 75mm
3.82" | 97mm
264
7-.300 Norma Magnum
4302 Joule
0.284
167
102
78.6gr | 5.09g
2929fps | 893m/s
2.49" | 63.3mm
3.63" | 92.3mm
79
7.21 Firebird (Lazzeroni)
4332 Joule
0.284
149
121
88.3gr | 5.72g
3051fps | 930m/s
2.8" | 71.1mm
3.55" | 90.2mm
269
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