AR-Comp Load Data: 1,378 Published Loads in 35 Cartridges

Empirical Precision indexes 1,378 published loads for AR-Comp (Alliant) across 35 bottleneck rifle cartridges from 8 reloading sources, spanning projectile weights from 40 gr to 250 gr.

Open AR-Comp in the Load Library Open interactive Burn Chart

Published Loads1,378

Cartridges35

Sources8

Bullet Weights40–250 gr

Always start low and verify against the original published source before loading.

Powder Data Sheet

Manufacturer: Alliant
Grain Type: Single-perforated Extruded
Bulk Density: 932 kg/m³

Burn Rate Position

Position #41 of 145 rifle powders on the Empirical Precision relative burn chart (ordered fastest to slowest).

Nearest Faster: N135, IMR 3031
Nearest Slower: Benchmark, Shooters World AR Plus

A burn chart is a guide, not load data.

Cartridges Published (35)

Cartridge	Published Loads
223 Remington	241
308 Winchester	161
224 Valkyrie	126
223 Remington Ackley Improved	113
6mm ARC	106
22 Nosler	105
6mm Dasher	59
6mm XC	56
6.5 Grendel	53
222 Remington Magnum	48
220 Swift	43
22 ARC	35
5.56x45mm NATO	32
22 BR Remington	26
250 Savage	26
6.8mm Remington SPC	19
338 Federal	18
270 Winchester	14
6.5 Creedmoor	13
7-30 Waters	12
35 Whelen	10
222 Remington	8
243 Winchester	8
7mm-08 Remington	7
7x57 Mauser	6
30-30 Winchester	6
223 WSSM	5
6.5x55 Swedish	4
35 Remington	4
22-250 Remington	3
260 Remington	3
270 WSM	2
280 Remington	2
356 Winchester	2
375 Ruger	2

Sources Publishing Data (8)

Publisher	Published Loads
Sierra	1,050
Speer	130
Hornady	75
Lyman	58
Barnes	32
Alliant	17
Nosler	12
Federal	4