95 tmk issues in 6 creed

Joined
Mar 24, 2024
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I know there is another post about them that’s recent but I didn’t want to hijack someone else’s post with my issues.

So I got a batch of these to try and in 2 guns I’m starting to hit pressure at 41.5 grains of 4350 with Peterson brass. 42 grains is very heavy bolt lift and shaving brass off the head stamp.

Reading @Formidilosus comment about them being seated closer to 2.6 makes me think I need to seat them farther in to bleed off some pressure. I have them seated about 2.75 I think.

Two guns are, Seekins ph3 24” bbl and running about 2900 And a ruger American gen 2 with a 20” barrel and they were about 2850.

Anyone else had this issue? Book max is 43.1 from sierra
 
My buddy has a seating tool that he brought to the range the other day.

We saw velocity increase when he seated bullets in further so I bet if you make your cartridges shorter that you will increase pressure instead of decreasing it.

I shot a bunch of 95tmks with 43.5gr H4350 at 2.680 and 2.770 and they were fine thru a barrel in which the chamber is too long to seat near the lands.
 
I shot some UM .243 108gr ELDM loads in my Tikka unsuppressed and just had a little hard bolt lift. Then when I shot them with a suppressor on, the loads were blowing primers out and have heavy ejector indentations on the brass.
That’s lame….dont want to shoot them if I can’t use the suppressor
 
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