I just got a new Forster microseater die in 270WSM. After seating my first bullets with it, I'm noticing it's leaving a slight mar belt mark on the bullet. I hope it shows in the photos but it's definitely a belt mar mark about mid-way on the exposed portion of the bullet. I can't really feel it with my finger nail but I've never had this die do this before and I have 3 other ones for different calibers. Any ideas? Is this something I should worry about? Maybe just some tooling with a brand new die? I have 100 bullets I'm ready to seat but don't want to do anymore until I figure this out. Thanks!
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Mared Belt Mark on Bullet...?
- Thread starter Full Curl
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Schnyd112
Well-Known Member
Good call on trying to polish the stem, I never thought of that. Sinclair makes stems with derlin inserts that is supposed to keep that from happening as well.
Also, do you anneal? Your necks just may be getting hard and the stem is having to do too much work. If it wasn't for the new seating stem, that's the first place I would go.
Also, do you anneal? Your necks just may be getting hard and the stem is having to do too much work. If it wasn't for the new seating stem, that's the first place I would go.
Took the stem out and polished it with some steel wool and it definitely helped. This is brand new Win brass and the necks are definitely much tighter so I'm sure that was part of it too. A nice clean stem really helped. Thanks for the replies!
