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Also known as: 6 Dasher
Common uses: Competition, Long Range
| Type | rifle (centerfire) |
| Typical load | 105gr Eagle Eye Precision Match Berger Hybrid |
| Muzzle velocity | 2850 fps |
| Muzzle energy | 1893 ft-lb |
| Stored G1 ballistic coefficient (source unresolved) | 0.536 |
| Stored G7 ballistic coefficient | 0.275 |
| Case length | 39.24 mm |
| Overall length | 2.36 in |
| Common twist rate | 1:8" |
| Range (yd) | Velocity (fps) | Energy (ft-lb) | Drop (in) |
|---|---|---|---|
| 0 | 2850 | 1893 | -1.5 |
| 100 | 2675 | 1668 | 0 |
| 200 | 2508 | 1466 | -3.4 |
| 300 | 2346 | 1283 | -12.3 |
| 400 | 2191 | 1119 | -27.5 |
| 500 | 2041 | 971 | -50 |
At 1,000 yards, 6mm Dasher (105gr at 2850 fps, 100 yd zero, standard conditions) has a modeled come-up of about 30.0 MOA / 8.7 MIL, retaining 1397 fps (supersonic).
| Range (yd) | Velocity (fps) | State | Drop (in) | Elev (MOA) | Elev (MIL) |
|---|---|---|---|---|---|
| 600 | 1916 | Supersonic | -80.1 | 12.8 | 3.71 |
| 700 | 1780 | Supersonic | -120.1 | 16.4 | 4.77 |
| 800 | 1648 | Supersonic | -171.1 | 20.4 | 5.94 |
| 900 | 1520 | Supersonic | -234.9 | 24.9 | 7.25 |
| 1000 | 1397 | Supersonic | -313.9 | 30.0 | 8.72 |
Extended predictions beyond 500 yards use the CaliberAtlas G7 point-mass model — useful for initial DOPE, but outside the 500-yard manufacturer-table validation audit. Confirm with observed DOPE, especially near transonic.
The listed uses do not identify an explicit big-game hunting role, so deer- and elk-sized energy references aren't shown. Evaluate the named load using its available source data and any displayed trajectory, then verify the result for the listed target, competition, defensive, tactical, or duty context.
Published BCs depend on a reference drag model and stated velocity conditions. A source review does not independently measure a BC. Understanding BC sources
Manufacturer item 105 gr Hybrid factory load · Sources checked
Eagle Eye lists its 105 gr Berger Hybrid ammunition at 2,850 fps with G7 .273. Berger separately lists Hybrid Target components 24433/24733 with G1 .536, G7 .275 and sectional density .254.
Still unresolved: The factory page does not print the component SKU, test-barrel length or muzzle energy. Stored coefficients retain their component attribution; G7 .275 must not be presented as Eagle Eye's published .273. No numerical fields changed.
Your barrel, ammunition lot, and conditions will differ — always verify against the manufacturer's data and your own rifle.
The Dasher is a target cartridge through and through: a long-time benchrest and F-Class standout that became one of the dominant Precision Rifle Series (PRS) cartridges, prized for pushing 105-grain match bullets around 2,850–3,000 fps from a small, efficient case, with mild recoil and excellent barrel life. Factory Eagle Eye match ammunition drives a 105-grain Berger Hybrid at 2,850 fps. It is not a mainstream hunting round — brass prep and magazine feeding take more attention than a factory cartridge — but for shooters chasing small groups and wind-beating efficiency at 600–1,000 yards it remains a benchmark.
The 6mm Dasher began life around 1999 as a wildcat, commonly credited to gunsmith Dan Dowling and Al Ashton — "Dasher" blends "Dan" and "Ashton." It is the 6mm BR Norma improved: the shoulder blown forward roughly a tenth of an inch to a sharp 40-degree angle, picking up about ten percent more powder capacity while keeping the BR's famously accurate, efficient case. For years shooters fire-formed 6BR brass to make Dashers; today Peterson and Alpha Munitions sell properly headstamped 6mm Dasher brass, Eagle Eye loads factory match ammunition, and in 2023 the cartridge was documented in an official C.I.P. datasheet — an unusually mainstream fate for a benchrest wildcat.
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