22 hornet and WC829

[bigdog454]

anyone have any suggestions on using wc820 (AA#9 equ) with 40 grain hard cast?
I am looking for starting loads. Where can I find some? I have about 16 lbs of #9 and would like to use some in the hornet.
Thanks BD

[skeet1]

bigdog454
The following is a copy of a letter I received from Accurate Arms on the use of No.9 in the Hornet Maybe it will help you. I have used WC820 at a starting load for No. 9 with jacketed 40 gr. bullets but have not experimented any further than that. I am quite sure that you will be able to shoot lead with WC820 in your Hornet with some work to find a correct load.

Ken



Kenneth,
Relative burn charts can be deceiving.
No 9 is significantly different and faster burning than 1680.
*
Unfortunately we do not have any specific lab tested data on this powder caliber combination.
(See notes 1.1 and 2.1 below).
However, we can provide you with some guideline, based on calculations and information from other sources.
Caliber: .22Hornet
Barrel length: 20”

Powder:* ACCURATE – No 9.
Bullet weight: 35grains. V-Max Hornady
Start load: 8.8 grains (2400 – 2500 ft/p/sec)
Maximum load: 9.7 grains (2650 – 2750 Ft/p/sec).
Bullet weight: 40 grains. SP
Start load: 8.0 grains (2300 – 2400 ft/p/sec)
Maximum load: 9.0 grains (2500 – 2600 Ft/p/sec).
Bullet weight: 45 grains. SP
Start load: 7.6 grains (2100 – 2200 ft/p/sec)
Maximum load: 8.7 grains (2400 – 2500 Ft/p/sec).

Powder: *ACCURATE - 4100.
Bullet weight: 35grains. V-Max Hornady
Start load: 9.0 grains (2400 – 2500 ft/p/sec)
Maximum load: 10.2 grains (2650 – 2750 Ft/p/sec).
Bullet weight: 40 grains. SP
Start load: 8.5 grains (2300 – 2400 ft/p/sec)
Maximum load: 9.4 grains (2500 – 2600 Ft/p/sec).
Bullet weight: 45 grains. SP
Start load: 8.0 grains (2100 – 2200 ft/p/sec)
Maximum load: 9.2 grains (2400 – 2500 Ft/p/sec).

NOTE:
It’ important to note that:
Whenever Western Powders Inc 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
For all Sales, Marketing, Pricing Distribution and related issues, please call toll free 800-497-1007.

[beagle]

22 Horn 225107 40.0 gr bullet WC820 8.5 gr Pwdr 2433 FPS 44.5 SD 2255 Szd WSR Pri 1.642 OAL

This ought to give you a place to start. I'd drop to 8.0 grains as 2400 seems to be the cutoff for good cast accuracy in cast .22s./beagle

[bobthenailer]

Use 2400 data to be on the safe side ! i have used WW surplus 820 extensvley in the 22 hornet , 30/20, 38 super, 357 mag , 44 mag and the 454 casull from many firearms in each caliber with excellent results in every application. with cast or jacketed boolets. however for max safe velocity in the hornet its hard to beat LilGun usually 150 to 200 fps higher velocity than can be obtained with 2400, #9, 296/H110, 1680. 4227, with excellent accuracy to boot !

[bigdog454]

Thanks, that will give me some good starting ideas on loads.
BD