Seating Depth

cahunter805

Active member
Joined
May 27, 2014
Messages
732
Brian

Seating depth IMO is what can drastically change a load/group size. It’s much more important than the powder charge.
Do a seating depth test in .020 and you might find some interesting results. You can fine tune after initial results also.
 

N2TRKYS

Active member
Joined
Jul 26, 2016
Messages
649
Location
Alabama
That's generally what I do, just go by listed COAL. Seems to work just fine. I got interested in messing with seating depth a while back but I've never really done much with it. The only time I've ever loaded to magazine length was this past spring when trying Ramshot Big Game in my 7-08 with 139grn Hornady Interbonds. I seated to mag length in that case just because I thought the secant profile was going to give the bearing surface a pretty long jump to the lands, so I loaded long. I haven't messed with it since, but that produced a real good load. Its 1 MOA and zipping out there at about 2920 fps.
Sounds like a good load that’s smoking right along.
 
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