David,

Unfortunately we do not have any specific lab tested data on this caliber. (See notes 1.1 and 2.1 below).

However, I can provide you with some guideline, based on calculations and information from other sources.

Caliber: 204 Ruger

Application: Rifle.

Barrel length: 24â€

Warning: This is a very sensitive caliber, therefore it’s vitally important to begin loading at the suggested “START†load.

Powder: AA 2015.

Bullet weight: 32/33 grains.

Start load: 23.5 grains (3400 – 3500 ft/p/sec)

Maximum load: 26.0 grains (3900 – 4000 ft/p/sec).

Bullet weight: 40 grains.

Start load: 22.5 grains (3200 – 3400 ft/p/sec)

Maximum load: 25.5 grains (3650 – 3750 ft/p/sec).

Powder: AA 2230.

Bullet weight: 32/33 grains.

Start load: 24.0 grains (3400 – 3500 ft/p/sec)

Maximum load: 27.0 grains (3950 – 4100 ft/p/sec).

Bullet weight: 40 grains.

Start load: 23.5 grains (3300 – 3400 ft/p/sec)

Maximum load: 26.2 grains (3650 – 3750 ft/p/sec).

Powder: AA 2460/2230-C.

Bullet weight: 32/33 grains.

Start load: 24.5 grains (3400 – 3500 ft/p/sec)

Maximum load: 27.5 grains (3950 – 4100 ft/p/sec).

Bullet weight: 40 grains.

Start load: 23.0 grains (3300 – 3400 ft/p/sec)

Maximum load: 26.8 grains (3650 – 3750 ft/p/sec).

Powder: AA 2520. (FIRST CHOICE!!)

Bullet weight: 32/33 grains.

Start load: 26.0 grains (3400 – 3500 ft/p/sec)

Maximum load: 29.0 grains (3950 – 4100 ft/p/sec).

Bullet weight: 40 grains.

Start load: 24.5 grains (3300 – 3400 ft/p/sec)

Maximum load: 27.5 grains (3650 – 3750 ft/p/sec).

NOTE:

It’ important to note that:

Whenever Accurate Arms do not test, and have actual data, on a particular caliber or caliber/bullet combination, we may in some cases provide some guideline. This information will be based on various procedures and calculations, or from other very reliable sources.

1. SAFETY is our prime concern therefore:

1.1. The loading data is conservative, especially regarding the minimum or start load to ensure a safe baseline to work from.

1.2. The safety margin built into the start load might be more than the customary 10%.

2. We strongly recommend.

2.1. To always start at the recommended minimum “START†load.

2.2. If at all possible, measure the velocity.

2.3. Contact us again with the velocity data, so that we can verify, and correlate with our calculated/estimated data. The data should also be compared, with the typical velocity levels accepted in the industry, for that particular caliber-bullet weight combination.





Regards

Johan Loubser

Ballistician

Western/Accurate Powders

Tel: 1800 497 1007 or (406) 234 04 22

Part of Western Powders -- Miles City Montana