Barnes TTSX 130 Grain, .308, Load Help

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canadianshooter

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I've run into a problem loading for my .308. I'm working up a load based on Barnes Load data. I'm using Barnes tipped TSX bullets, 130 grain weight. My press is a Redding Big Boss. The dies are Forster Bench Rest dies with an micrometer seating die. I've run into a problem with inconsistent seating length. As my charge weights increase the C.O.A.L increases as well! At first I though it was just bullet variation as I was not using a bullet comparator but then I noticed as the load increased the length increased as well?!?! I don't know what to make of this and was hoping for some advice. The load density of the max charge is 106% according to Barnes data. Thanks.
 
This happens w/ compressed chages and the Forster seater. Keep turning the seating stem down, and it will seat the bullet deeper. The bulle tmay or may not stay at the depth you want, depending on how compressed the charge is, and how much neck tension your brass has. What powder are you using?
 
Varget, Compressed

I'm loading with Varget in Winchester Brass (once fired). The load is a compressed load, and just visually estimating, is very compressed. I thought with a seater die, once you set it, it would always seat to the same depth except for bullet variation? I have not crimped them yet but will be as per Barnes recommendation.
 
Without a crimp at the same time you seat the bullet, the powder is pushing the bullet back out as it comes away from the seating punch. Need a tight crimp or less powder!!
 
mpwolf said:
This happens w/ compressed chages and the Forster seater. Keep turning the seating stem down, and it will seat the bullet deeper. The bulle tmay or may not stay at the depth you want, depending on how compressed the charge is, and how much neck tension your brass has. What powder are you using?
Click to expand...

Why only the Forster seater? It sounds like a neck tension issue to me, but I have never used the Forster seater and am wondering why it is special in this regard? I have loaded a number of .338 Win Mag rounds during load development with fairly heavily compressed charges and none of them have had the bullet walk out. So far, touch wood and all that...:D

Mark
 
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