What is the 6.5 mm Grendel?

The 6.5 mm Grendel is a factory rifle cartridge in the Alexander Arms family.

What bullet diameter does the 6.5 mm Grendel use?

The 6.5 mm Grendel uses a bullet diameter of 0.264 inches.

What is the case type of the 6.5 mm Grendel?

The 6.5 mm Grendel has a Rimless, Bottlenecked case type.

What primer does the 6.5 mm Grendel use?

The 6.5 mm Grendel uses a Large Rifle (.210") primer.

What cartridges are in the Alexander Arms family?

The Alexander Arms family includes the 6.5 mm Grendel and other related cartridges. Browse the full family on OpenCartridge.

6.5 mm Grendel

Rifle Factory

Family	Alexander Arms
Case Type	Rimless, Bottlenecked
Primer	Large Rifle (.210")

Dimensions (inches)

Bullet Ø	0.264
Case Length	1.515
Neck Ø	0.292
Shoulder Ø	0.432
Base Ø	0.443
Rim Ø	0.445
Total Length	2.25

References

CotW 15th Ed. p. 146

Ammo Ency. 6th Ed. p. 593

Muzzle Velocity across 25 loads: Avg 2530 fps Min 2216 fps Max 3030 fps

Community Load Data

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Powder (name or brand)

Min MV (fps)

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123.00gr Lapua Match — 25.90gr

by imported_data · Aug 12, 2026

2427 fps

2.2550 OAL"

N/A Case

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120.00gr Sierra Soft Point (SP) — 26.30gr

by imported_data · Aug 12, 2026

2442 fps

2.2550 OAL"

N/A Case

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90.00gr Speer Soft Point (SP) — 30.60gr

by imported_data · Aug 12, 2026

2954 fps

2.2550 OAL"

N/A Case

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140.00gr Hornady Boat Tail Hollow Point (BTHP) — 26.70gr

by imported_data · Aug 12, 2026

2249 fps

2.2600 OAL"

Starline Case

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130.00gr Nosler Other — 27.40gr

by imported_data · Aug 12, 2026

2267 fps

2.2600 OAL"

Starline Case

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130.00gr Sierra Match — 28.20gr

by imported_data · Aug 12, 2026

2406 fps

2.2600 OAL"

Starline Case

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120.00gr Sierra Boat Tail Hollow Point (BTHP) — 28.40gr

by imported_data · Aug 12, 2026

2473 fps

2.2600 OAL"

Starline Case

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123.00gr Sierra Boat Tail Hollow Point (BTHP) — 28.60gr

by imported_data · Aug 12, 2026

2482 fps

2.2600 OAL"

Starline Case

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85.00gr Sierra Hollow Point (HP) — 33.30gr

by imported_data · Aug 12, 2026

3030 fps

2.1800 OAL"

Starline Case

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100.00gr Hornady Round Nose (RN) — 30.50gr

by imported_data · Aug 12, 2026

2794 fps

2.2600 OAL"

Starline Case

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140.00gr Match — 28.40gr

by imported_data · Aug 12, 2026

2264 fps

2.2600 OAL"

Starline Case

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139.00gr Lapua Match — 27.70gr

by imported_data · Aug 12, 2026

2216 fps

2.2600 OAL"

Starline Case

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130.00gr Nosler Other — 28.30gr

by imported_data · Aug 12, 2026

2217 fps

2.2600 OAL"

Starline Case

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130.00gr Sierra Boat Tail Hollow Point (BTHP) — 28.70gr

by imported_data · Aug 12, 2026

2346 fps

2.2600 OAL"

Starline Case

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123.00gr Lapua Match — 28.80gr

by imported_data · Aug 12, 2026

2382 fps

2.2600 OAL"

Starline Case

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120.00gr Sierra Boat Tail Hollow Point (BTHP) — 29.50gr

by imported_data · Aug 12, 2026

2434 fps

2.2400 OAL"

Starline Case

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100.00gr Hornady Round Nose (RN) — 31.30gr

by imported_data · Aug 12, 2026

2697 fps

2.2500 OAL"

Starline Case

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85.00gr Sierra Hollow Point (HP) — 33.00gr

by imported_data · Aug 12, 2026

2849 fps

2.1800 OAL"

Starline Case

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140.00gr Hornady Boat Tail Hollow Point (BTHP) — 28.30gr

by imported_data · Aug 12, 2026

2330 fps

2.2600 OAL"

Starline Case

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130.00gr Nosler Other — 29.30gr

by imported_data · Aug 12, 2026

2386 fps

2.2600 OAL"

Starline Case

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130.00gr Sierra Match — 29.70gr

by imported_data · Aug 12, 2026

2493 fps

2.2600 OAL"

Starline Case

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123.00gr Sierra Boat Tail Hollow Point (BTHP) — 31.40gr

by imported_data · Aug 12, 2026

2625 fps

2.2600 OAL"

Starline Case

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120.00gr Sierra Boat Tail Hollow Point (BTHP) — 31.00gr

by imported_data · Aug 12, 2026

2626 fps

2.2400 OAL"

Starline Case

PRO

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100.00gr Hornady Round Nose (RN) — 31.50gr

by imported_data · Aug 12, 2026

2849 fps

2.2500 OAL"

Starline Case

PRO

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85.00gr Sierra Hollow Point (HP) — 33.30gr

by imported_data · Aug 12, 2026

3014 fps

2.1800 OAL"

Starline Case

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PRO

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