AAC 6.5mm Grendel 123gr OTM Ammo Ballistics
Brass Case • OTM
AAC 6.5mm Grendel 123gr OTM Ammo Ballistics
Brass Case • OTM
Trajectory @ 100yd Zero
| Range | Velocity | Energy | Drop |
|---|---|---|---|
| Muzzle | 2525 fps | 1741 ft-lb | — |
| 25 yds | 2476 fps | 1675 ft-lb | -0.6" |
| 50 yds | 2428 fps | 1611 ft-lb | -0.0" |
| 75 yds | 2381 fps | 1549 ft-lb | +0.2" |
| 100 yds ⊕ | 2335 fps | 1489 ft-lb | +0.0" |
| 125 yds | 2289 fps | 1431 ft-lb | -0.6" |
| 150 yds | 2243 fps | 1375 ft-lb | -1.6" |
| 175 yds | 2198 fps | 1320 ft-lb | -3.0" |
| 200 yds | 2153 fps | 1267 ft-lb | -4.9" |
| 225 yds | 2109 fps | 1216 ft-lb | -7.2" |
| 250 yds | 2066 fps | 1166 ft-lb | -10.1" |
| 275 yds | 2023 fps | 1118 ft-lb | -13.4" |
| 300 yds | 1980 fps | 1071 ft-lb | -17.3" |
| 325 yds | 1938 fps | 1026 ft-lb | -21.7" |
| 350 yds | 1897 fps | 983 ft-lb | -26.7" |
| 375 yds | 1856 fps | 941 ft-lb | -32.3" |
| 400 yds | 1816 fps | 901 ft-lb | -38.6" |
| 425 yds | 1776 fps | 862 ft-lb | -45.4" |
| 450 yds | 1737 fps | 825 ft-lb | -53.0" |
| 475 yds | 1699 fps | 789 ft-lb | -61.3" |
| 500 yds | 1662 fps | 754 ft-lb | -70.4" |
Product Overview
AAC 6.5mm Grendel fires a 123-grain Open Tip Match bullet at 2,525 fps, generating 1,741 ft-lbs of muzzle energy. The G1 ballistic coefficient of 0.450 places this between their FMJ training round and premium match options. AAC designed this load as a bridge—better accuracy potential than FMJ while keeping costs below dedicated competition ammunition.
The OTM bullet design features a small opening at the tip created by the jacket-forming process, giving it improved flight characteristics over closed-tip FMJ bullets. This opening is a manufacturing byproduct rather than an expansion mechanism, so terminal performance remains similar to FMJ on target. AAC loads this to the same velocity as their hunting and training rounds, maintaining consistent point of impact across their entire Grendel lineup.
Club-level competition and precision practice suit this ammunition best. Shooters who want better accuracy than FMJ for local matches without investing in premium match ammunition will find the OTM delivers sub-MOA groups in quality barrels. The consistent velocity across AAC's lineup also means shooters can practice with FMJ, compete with OTM, and hunt with Sabre Blade using the same zero.
- OTM design offers improved accuracy over FMJ at a lower price point than premium match ammunition
- Velocity matches AAC's full Grendel lineup, allowing shooters to use one zero across training, competition, and hunting loads
- The 123-grain weight and 0.450 BC provide solid performance at practical competition distances
- Brass cases are reloadable for shooters who develop precision handloads
- Limited distribution makes AAC ammunition harder to find than major manufacturers
- At 2,525 fps, velocity sits below Hornady and Federal match loads running 2,580+ fps
- The open tip does not expand reliably, so this is not suitable for hunting despite the HP-like appearance
- May not deliver the extreme consistency required for top-tier national-level competition
All AAC 6.5mm Grendel 123gr OTM Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
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