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6.5 mm Calibers Comparison

6.5 mm Calibers Comparison

The world of 6mm calibers is vast and varied, offering a wide array of choices for precision shooters, hunters, and competitors. These calibers are generally known for their balance between ballistic efficiency, velocity, and manageable recoil. The 6mm bullet diameter, equivalent to approximately .243 inches, is widely regarded for its flat trajectory and long-range accuracy. Whether it's for varmint hunting, target shooting, or tactical use, the 6mm calibers deliver excellent performance across various applications. Below, we will explore some of the most popular and widely used 6mm calibers and their characteristics and applications.


  • 6mm Creedmoor: One of the most well-known 6mm calibers today is the 6mm Creedmoor, which was developed as a necked-down version of the 6.5mm Creedmoor. It offers impressive accuracy at long ranges due to its high ballistic coefficient and flat trajectory. The 6mm Creedmoor is widely used in long-range shooting competitions and precision rifle matches. With its manageable recoil, it is also a popular choice for hunting medium-sized game such as deer and pronghorns.

  • .243 Winchester: The .243 Winchester is one of the most versatile 6mm calibers on the market, introduced in the 1950s. It is known for its mild recoil and excellent performance in varmint hunting, such as for coyotes and prairie dogs, and medium-sized game like deer. The .243 Winchester is an excellent choice for beginners due to its manageable recoil and versatility across hunting and target shooting applications.

  • 6mm Remington: The 6mm Remington is an older but still highly regarded caliber that was developed from the .257 Roberts. It offers higher velocities than the .243 Winchester due to its slightly longer case. The 6mm Remington is well-suited for hunting medium-sized game and for long-range shooting. Although not as popular as the .243 Winchester, it still remains a favorite among hunters who appreciate its power and accuracy.

  • 6mm ARC (Advanced Rifle Cartridge): The 6mm ARC is a relatively new caliber developed by Hornady for military applications, but it has gained popularity among civilian shooters. It is designed for use in AR-15 platforms and offers excellent long-range ballistics while maintaining low recoil. The 6mm ARC is a fantastic choice for tactical shooters, precision marksmen, and hunters, as it performs well at distances beyond 1,000 yards and is effective for both target shooting and medium-sized game hunting.

  • 6x47mm Lapua: The 6x47mm Lapua is a high-performance cartridge designed primarily for precision rifle shooting. It is a necked-down version of the .222 Remington Magnum and has gained a reputation for its accuracy in long-range competitions. With a fast muzzle velocity and flat trajectory, it is a popular choice among competitive shooters seeking pinpoint precision at extended ranges.

  • 6mm BR (Bench Rest): The 6mm BR is one of the most accurate and well-known calibers in precision shooting, particularly in bench rest competitions. It has low recoil, making it easy to shoot consistently, and is renowned for its impressive accuracy at medium and long distances. The 6mm BR is a favorite among competitive marksmen who prioritize precision over velocity.

  • 6mm PPC (Palmisano & Pindel Cartridge): The 6mm PPC is a highly specialized caliber designed for bench rest shooting and accuracy competitions. Developed from the .220 Russian case, the 6mm PPC is well-regarded for its unmatched precision, making it a dominant choice in the bench rest community. Its design optimizes accuracy at short to medium ranges, and it remains a popular choice for those competing in precision shooting events.

  • 6mm Dasher: The 6mm Dasher is a wildcat cartridge, meaning it is not commercially produced but rather custom-made. It is based on the 6mm BR case, with a few modifications to improve its ballistics and accuracy. The 6mm Dasher is highly favored by long-range shooters and is often used in precision rifle competitions. Its flat trajectory and excellent wind resistance make it effective at long distances.

  • 6mm XC: The 6mm XC was designed for long-range shooting competitions and has been used by several national and international shooting teams. It is known for its ability to deliver high velocity while maintaining manageable recoil, making it a preferred choice for shooters looking to balance power and accuracy. The 6mm XC is often used in precision rifle and tactical shooting disciplines.

Comparison Table 6.5 mm Calibers

The following table compares the key characteristics of all .300 rifle calibers including rifle calibers with a diameter between .300 and .310 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
.26 Nosler
3644 Joule
0.264
125
99
73.9gr | 4.79g
3103fps | 946m/s
2.59" | 65.8mm
3.34" | 84.8mm
219
.260 Rem.
2814 Joule
0.264
125
53.5
38.9gr | 2.52g
2707fps | 825m/s
2.03" | 51.6mm
2.8" | 71.1mm
206
.264 Leroy N.E.
2833 Joule
0.264
118
57
39.8gr | 2.58g
2794fps | 852m/s
2.02" | 51.2mm
2.56" | 65mm
132
.264 Win. Mag.
3427 Joule
0.264
125
82
61.9gr | 4.01g
2990fps | 912m/s
2.5" | 63.5mm
3.34" | 84.8mm
207
6.5 Creedmoor
2887 Joule
0.264
125
52
39.6gr | 2.57g
2761fps | 842m/s
1.92" | 48.8mm
2.8" | 71.1mm
213
6.5 Grendel
2196 Joule
0.264
120
37.5
26.9gr | 1.74g
2472fps | 754m/s
1.52" | 38.5mm
2.26" | 57.4mm
147
6.5 PRC
3487 Joule
0.264
125
72.3
56.1gr | 3.63g
3010fps | 918m/s
2.03" | 51.6mm
2.96" | 75.1mm
207
6.5 Weatherby RPM
3445 Joule
0.264
126
82.5
61.9gr | 4.01g
2990fps | 912m/s
2.57" | 65.3mm
3.34" | 84.8mm
222
6.5 mm Lahoz
2154 Joule
0.264
112
42
27.7gr | 1.8g
2490fps | 759m/s
1.69" | 42.8mm
2.26" | 57.4mm
77
6.5 mm Rem. Mag.
3151 Joule
0.264
124
68
49.2gr | 3.19g
2915fps | 889m/s
2.17" | 55.1mm
2.81" | 71.3mm
199
6.5 x 39
2042 Joule
0.264
115
34.4
24.2gr | 1.57g
2437fps | 743m/s
1.53" | 39mm
2.21" | 56mm
100
6.5 x 47 Lapua
2770 Joule
0.264
125
48
36.8gr | 2.38g
2692fps | 821m/s
1.85" | 47mm
2.8" | 71.1mm
203
6.5 x 50 R
2085 Joule
0.264
124
37.5
25.8gr | 1.67g
2383fps | 727m/s
1.95" | 49.5mm
2.67" | 67.8mm
199
6.5 x 52 R K&S
2314 Joule
0.264
125
47
33.2gr | 2.15g
2504fps | 763m/s
2.02" | 51.3mm
2.8" | 71.1mm
206
6.5 x 54
2259 Joule
0.264
122
51
33.2gr | 2.15g
2441fps | 744m/s
2.12" | 53.9mm
2.68" | 68mm
157
6.5 x 55 Swedish
2873 Joule
0.265
125
57
43.9gr | 2.85g
2738fps | 835m/s
2.17" | 55mm
3.15" | 80mm
199
6.5 x 57
2928 Joule
0.264
125
59
45.5gr | 2.95g
2789fps | 850m/s
2.23" | 56.7mm
3.23" | 82mm
204
6.5 x 57 R
2676 Joule
0.264
125
59
44.7gr | 2.9g
2679fps | 817m/s
2.23" | 56.7mm
3.23" | 82mm
205
6.5 x 58 R
1872 Joule
0.264
127
39.3
26.5gr | 1.72g
2413fps | 736m/s
2.3" | 58.4mm
3.07" | 78mm
44
6.5 x 58 mm Mauser Port.
2727 Joule
0.264
125
57
42.8gr | 2.77g
2683fps | 818m/s
2.28" | 58mm
3.23" | 82mm
205
6.5 x 64 (Reb)
3192 Joule
0.264
125
71.5
52.5gr | 3.4g
2936fps | 895m/s
2.52" | 64mm
3.31" | 84mm
208
6.5 x 64 Brenneke
3070 Joule
0.264
125
67
49.3gr | 3.19g
2936fps | 895m/s
2.54" | 64.5mm
3.34" | 84.8mm
208
6.5 x 65
3068 Joule
0.264
125
68
49.5gr | 3.21g
2871fps | 875m/s
2.56" | 65mm
3.34" | 84.8mm
206
6.5 x 65 R
2938 Joule
0.264
125
67
49.1gr | 3.18g
2833fps | 864m/s
2.56" | 65mm
3.34" | 84.8mm
208
6.5 x 68
3446 Joule
0.264
125
86
64.1gr | 4.15g
3068fps | 935m/s
2.66" | 67.5mm
3.41" | 86.5mm
207
6.5 x 68 R
3145 Joule
0.264
125
83
60.6gr | 3.93g
3002fps | 915m/s
2.66" | 67.5mm
3.45" | 87.5mm
207
6.5 x 70 R
1867 Joule
0.264
127
38.5
25.6gr | 1.66g
2193fps | 669m/s
2.74" | 69.5mm
3.54" | 90mm
43
6.5 x 72 R
2634 Joule
0.264
126
59
43.2gr | 2.8g
2658fps | 810m/s
2.23" | 56.7mm
3.79" | 96.3mm
186
6.5-06 A-Square
3203 Joule
0.264
125
65.7
50.6gr | 3.28g
2896fps | 883m/s
2.49" | 63.3mm
3.44" | 87.4mm
228
6.5-284 Norma
3142 Joule
0.264
126
66
51.3gr | 3.32g
2863fps | 873m/s
2.17" | 55.1mm
3.23" | 82mm
218
6.5-300 Weatherby Magnum
3595 Joule
0.264
126
98
74.5gr | 4.83g
3117fps | 950m/s
2.83" | 71.8mm
3.6" | 91.4mm
222
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