7 mm Blaser Mag. Load Data & Reloading Guide
Also known as: 7mm Blaser Magnum, 7×64mm Blaser, 7mm Remington Magnum
About 7 mm Blaser Mag.
The 7 mm Blaser Magnum was introduced by the German firearms company Blaser in the early 2000s. Designed to excel in long-range shooting disciplines, this cartridge was developed as part of a proprietary series intended to complement Blaser's unique rifle systems. Its primary focus was to combine high ballistic performance with versatile hunting capabilities, making it a suitable choice for various European and North American game animals.
Technically, the 7 mm Blaser Magnum features a rimless bottlenecked case, maximizing powder capacity while maintaining efficient feeding and extraction characteristics. The case dimensions and overall design enhance high-velocity performance without excessive recoil, achieving a balanced pressure and velocity profile. Typical bullet diameters measure 7 mm or 0.284 inches, consistent with other 7 mm cartridges, allowing for a wide selection of bullets.
Ballistic performance is a key strength of the 7 mm Blaser Magnum. It offers exceptional accuracy and excellent downrange energy retention, accommodating a variety of bullet weights typically ranging from 140 to 180 grains. The cartridge’s high muzzle velocity and flat trajectory make it ideal for long-range hunting applications and precision target shooting, ensuring effective terminal performance on medium to large game.
For reloaders, the cartridge offers significant flexibility and potential. Its relatively recent creation means contemporary powders, primers, and bullets can be utilized to optimize performance. Additionally, the wide range of available projectile options in the 7 mm caliber allows for tailored load developments that suit individual preferences or specific hunting and competition needs. Reloaders can achieve optimal velocity and accuracy, enhancing the cartridge's inherent performance advantages in diverse field conditions.
Technical Drawing

Technical Specifications
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Start CalculatingBrass Case Capacities
The following table shows the case capacity (Grains of Water) for brass in cartridge 7 mm Blaser Mag. where we have data (number of datapoints in brackets).
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Standard Load Data — 7 mm Blaser Mag.
Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.
.284 | 140gr | Nosler Expansion Tip
.284 | 139gr | Hasler ARIETE
.284 | 140gr | Swift A-Frame
.284 | 120gr | Barnes TSX BT
.284 | 140gr | Barnes XLC BT
.284 | 175gr | Alaska Bullet Works Kodiak PP SPBC
.284 | 175gr | Swift A-Frame
.284 | 170gr | Sako Hammerhead
.284 | 118gr | CutEdge ESP Raptor
.284 | 110gr | Barnes TTSX FB
.284 | 127gr | Geco ZERO LG
.284 | 115gr | CutEdge ESP Raptor
.284 | 110gr | Speer MHP
.284 | 127gr | RWS Evolution Green
.284 | 110gr | Norma Soft Point
.284 | 110gr | Speer TNT
.284 | 120gr | CutEdge ER Raptor
.284 | 120gr | AERO SB.HSD 1.5 ,- smax:15.10
.284 | 120gr | Merlin Virtus
.284 | 120gr | AERO SB.HSD 2.0 ,- smax:15.20
.284 | 105gr | AERO ECO,- smax:11.10
.284 | 120gr | Osprey Virtus
.284 | 120gr | Barnes TTSX BT
.284 | 100gr | Barnes Solid
Community Loads — 7 mm Blaser Mag.
Here are some popular loads for 7 mm Blaser Mag.:
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| Bullet | Powder | Barrel (in) | Charge (gr) | Case Volume (GoW) | OAL (in) | Max. Pressure (psi) | Muzzle Velocity (fps) | |
|---|---|---|---|---|---|---|---|---|
M.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | ••.• | 83.2 | 3.27 | 57,696 (95%) | 3238 | |
M.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | ••.• | 83.2 | 3.31 | 58,697 (96%) | 3225 | |
M.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | ••.• | 83.2 | 3.27 | 55,631 (91%) | 3209 | |
M.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | ••.• | 83.2 | 3.29 | 55,187 (91%) | 3199 | |
.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | ••.• | 83.2 | 3.27 | 54,723 (90%) | 3192 | |
M.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | 69.0 | 83.2 | 3.31 | 56,318 (92%) | 3189 | |
.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | 69.0 | 83.2 | 3.31 | 47,297 (78%) | 3064 | |
.284 | 140gr | Nosler AccuBond (140gr) | Norma MRP | 25.6 | 70.0 | 83.2 | 3.31 | 49,574 (81%) | 3107 | |
.284 | 175gr | Nosler AccuBond Long Range (175gr) | Reload RS 76 | 25.6 | ••.• | 83.2 | 3.29 | 49,632 (81%) | 2877 | |
.284 | 175gr | Nosler AccuBond Long Range (175gr) | Reload RS 76 | 25.6 | ••.• | 83.2 | 3.35 | 48,022 (79%) | 2854 | |
M.284 | 190gr | Berger Long Range Hybrid Target (190gr) | Vihtav N568 | 24.6 | ••.• | 82.5 | 3.39 | 55,419 (91%) | 2795 | |
.284 | 190gr | Berger Long Range Hybrid Target (190gr) | Vihtav N568 | 24.6 | ••.• | 82.5 | 3.43 | 54,447 (89%) | 2782 |
Frequently Asked Questions
The maximum pressure for 7 mm Blaser Mag. is 60,916 psi | 4,200 bar.
7 mm Blaser Mag. typically uses a Large Rifle Magnum (LRM) primer.
The case capacity of 7 mm Blaser Mag. is approximately 82.5 grains of water (H₂O).