New Sierra 150 SMK for 6.5

XLR308

Major Hide Member
Belligerents
Minuteman
Mar 22, 2018
2,101
1,771
119
Grand Junction, Colorado
My 6.5 is the x47, not the Creedmoor, but with H4350 and the 147gr ELDs, I haven’t found powder compression to be excessive, and my 8” twist Criterion barrel really likes them. Here’s 5 shots at 100 yards.

John

I seated a couple of the 147eld in new Lapua brass last time I was home but with the full diameter of the bullet at the neck shoulder junction I was at roughly 2.895".
I didn't measure the BTO since my new barrel still isn't finished so I'm not sure what I will end up with, but it looks like the SAAMI .199" free bore may be about right with these.
 

BallisticPrimate

Sergeant
Belligerents
Feb 11, 2017
500
340
69
My 6.5 is the x47, not the Creedmoor, but with H4350 and the 147gr ELDs, I haven’t found powder compression to be excessive, and my 8” twist Criterion barrel really likes them. Here’s 5 shots at 100 yards.

John

Good info, John. Can you tell me what freebore you have for the 147's? I'll be chambering a new 6.5x47 barrel soon and need to spec FB with my smith.
 

BallisticPrimate

Sergeant
Belligerents
Feb 11, 2017
500
340
69
IIRC, it’s a .167”. It was not speced for any bullet in particular, just how Criterion cuts them. James at Northland would be able to tell you for sure.

John
Roger that, I assume you're at the lands while still below the neck/shoulder junction
 

whiskeysierra762

Private
Belligerents
Oct 22, 2017
115
25
34
NE Oregon
  • Like
Reactions: Seymour Fish

Seymour Fish

Private
Minuteman
Oct 30, 2018
80
26
12
Everything was right. Scope was tested and tracks on. I was shooting a 10" piece of steel and all shots were well inside. Guessing a 6-7" group with not much vertical. maybe 3-4".

Not sure about his results as I don't know his velocities or circumstances. Can only speak to mine.
Rob, sounds well-documented , and very impressive b.c.’s. From a pure accuracy standpoint how do they compare to Sierra 142, JLK 140, Berger 140 hub at distance ?
 

Longwaysoff

Private
Minuteman
May 15, 2019
23
2
6
I am running a test on the 150 smk in my savage 10 stealth today with Reloder 26.... CBTO length is at 2.210. This length is 40 thousanths off the lands of my rifle and is single feed... I will post the data later today