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Jason.223
01-13-2009, 07:17 PM
chronographed some in my ruger 7.5 inch barrel 44 magnum

10 shot ave.

250 LSWC win brass win primers

WC820 17.0 1157 fps spread of 52 fps

2400 17.0 1138 fps spread of 49

looks good...glad I got some when it was cheap

hope this helps

Jason

Maven
01-13-2009, 08:58 PM
The WC 820 load is the one that Shuz recommended as well.

mike in co
01-13-2009, 11:32 PM
just a word of caution...there several lots of wc820...they vary a bunch...so always work up.

mike in co

CSH
01-14-2009, 10:09 PM
+1 to what Mike said. The burn rate on some lots is almost identical to H110, some are 10 - 15% faster. A chronograph is a very useful tool when working up loads for surplus powders.

bigdog454
01-15-2009, 12:19 PM
I was told that WC820 was = to H110, when I loaded in in my .454 Casull using the starting load for H110 ended up with sticky case's. I now uses AA9 load parameters and all is OK.

TCLouis
01-17-2009, 07:56 PM
I would think there are very few of us that have any WC-820 that should be loaded with any data other than AA#9.
And I thought 24 pounds of WC820 was a lot of powder back then. Wish I had 24 more.

WC-820(f) on the other hand should be treated as HS-7.

mdi
02-09-2009, 01:08 PM
I just received a jug of WC820 from Pat's Reloading. The label states it is 10% faster burning than H110, and to reduce H110 loading data by 10% to get proper loads for the WC820. The label also states the powder is "Virgin" (as opposed to pull down I suppose). As I understand there are 4 burn rates for WC820 on the market today; WC820, WC820(n), WC820(f), and WC820(f) lot no.47321. I'm waiting on some magnum primers to start using it in my 44s.

500swshooter
02-09-2009, 01:38 PM
In reply to previous post above. I have found that a slightly reduced charge of 820, h-110, aa9, or 296 with bullets that are not seated deeply without a heavy crimp will result in stuck cases due to powder and gases forming deposits on the outside of the casing and chamber. The case needs to fully expand and make a seal prior to the bullet being expelled. Heavy crimping with magnum primers and bullets seated deeply usually gives great results with this type of powder.

Ricochet
02-09-2009, 02:19 PM
Yeah, they're just not reduced load powders.