Hello
Just got a copy of the new Sierra manual and of course looked over the 10mm data.
They have included a lot more powders than the #5 manual, and have increased the loads for several others.
Interesting, the narrative states that AA#7 and Blue Dot are outstanding performers, but there are no loads for Blue Dot in the manual.. ?? Oops..
If they included 3N37, why not 3N38? I wonder what they didn't like about 800-X or AA#9?.. They actually listed loads for AA#9 in 38 Special loads...
Here is the list for 180gr;
Clays 5.3
Titegroup 5.8
American Select 5.6
N320 5.8
BE-86 8.1
Zip 7.0
Unique 7.2
Universal 7.2
Power Pistol 8.2
N340 7.1
True Blue 8.5
AA#5 9.3
Auto Comp 7.7
CFE Pistol 7.6
Silhouette 8.2
3N37 8.7
N350 7.8
572 8.1
AA#7 10.9
Longshot 8.3
Accuracy Load 9.3 AA#5
Hunting Load 8.1 BE-86
I agree with the accuracy load.. AA#5 has always produced tight groups. But the hunting load, not so much..
Interesting! Thanks for sharing!
Does it have any load data for 200gr bullets?
No, because Sierra doesn't make a 200gr bullet in 10mm. 180gr is as heavy as they go.