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7 STW Load Help

sanpedroranch

Gunny Sergeant
Full Member
Minuteman
I am about to get a 7 STW with 26” Bartlein 1-9 twist. Does anyone load the 185 gr RDF for their STW? If so what powder RL 23/26, H1000, Retumbo, 7828, 50BMG, US869? I was planning on 168’s but saw numbers on 185 RDF and they caught my attention plus they are on sale.
 
My notes from Oct 18, 2020 using 140 gr Nos Acc Bnd moly 3.65", 70 gr IMR-4166, QL predicts 3223 fps 70kpsi
I sighted in at 100 yards to hit a 1/2" dot, but got kicked in the eye 3 times with scope eyepiece cover. Length of pull on McMillan stock may be too short for me.


4) The 7mmSTW is a Defiance Deviant , Bartlein 9" twist 5R fluted, Sunny hill bottom. Wyatt mag and follower, Jewel trigger, Seekins rings, S&B 3-20x50 34mm PM II scope

Chronograph
3367 fps
3300
3361
3350
 

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