Using loading manuals when they don't have you exact powder and bullet combination

bclark7b

Beginner
Apr 15, 2022
13
5
Hello everyone, I have ramshot hunter powder and I'm looking to load 30-06 with 165gr Hornady SST's. My question is.the western load data has 2 165gr bullets for a 30-06 with Hunter powder but not the one I'm using. Can I use this data on the SST or will that cause problems?
 

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DrMike

Ballistician
Nov 8, 2006
35,235
1,810
Yes, you can use the data, though you will want to exercise some caution. Bearing surfaces can differ, causing pressure differentials, and metallurgical differences can create some differences that can throw a curve. On the whole, despite the cautionary statements, data for one bullet at a given weight will translate to similar data for another bullet. The key to safety is to start low and work up, watching for pressure signs. It is a wise move to use a chronograph, watching for exaggerated velocities that are indicative of excessive pressure.
 

JD338

Range Officer
Staff member
Nov 4, 2004
21,900
1,338
Some very good advice has been given. I would like to add by saying to always use cation with load data given on the internet and cross reference it with a trusted reloading guide. Having multiple reloading manuals with prove to be a value resource.

JD338
 

KinleyWater

Handloader
Jun 15, 2019
451
415
I'll add this: if you can get a line on the length of the bullet they use in the manual, compare it to the length of the bullet you have on hand. This will give you an idea of comparable seating depth and can warn you to stop adding powder when working up. It also suggests if you need to adjust your COAL.

For me, I like to sketch out a line drawing of the cartridge with measurements annotated (leftover from my machining days). It helps me visualize things like bullet seating, available powder volume, etc. before ever touching things that make fire. I find I can work out a lot of things just by looking at it and thinking it over carefully.
 

sako2

Beginner
Jan 5, 2019
228
48
Hodgdon has data for a 180gn sst. The start load of hunter is 54.5gn and max is 60.5gn.
 
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