190smk in 308?

TeamSasquatch

Active Member
Joined
Jun 7, 2002
Messages
44
Location
Del Rio Texas
Has anyone used the 190gr smk from a 24" barreled 308, and if so how did it perform...What velocities did you get, and how was accuracy...

Thanks in advance...

'Squatch.......
 

speedbump

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Joined
Mar 28, 2002
Messages
399
Location
Southern Illinois
At 300 meters from a 26" barrel, accuraCY WAS @ 1/2 - 3/4 moa. they used about 1/2 the wind as a 168. In fact, they fly very close to a 175. I didn't have a chrono available.
 

MontanaMarine

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Dec 4, 2001
Messages
348
Location
Canyon Ferry, MT
I've tossed moly coated 190SMKs from my 26" 1-12 twist .308, Rem700 VS. Using 42 and 43gr RL15. Didn't chrono them, but routine accuracy was around .5 moa. Only shot them at 200 yards.

MM
 

J Schulze

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Joined
Jul 29, 2002
Messages
61
Location
Atlanta
bro.

190's in a 308 the load I had worked up shot flatter than 175's to 1 grand. Had them floating in at about 34 MOA. If you want the load post in the hooch it is not for public consumptoin.
 

Jeff In TX

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Aug 10, 2003
Messages
408
Location
McKinney TX
Curious Question for those shooting 190 gr anything out of a 1:12 twist. How'd you get them to stabilize? Before I put my new 11:27 twist Rock barrel on my .308 rifle, I couldn't get the pervious 1:12 twist barrel to stabilized my 175 gr bullets.

I can't imagine getting .5 accuracy with a 1:12, but more power to you if you're getting it.
 

MontanaMarine

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Joined
Dec 4, 2001
Messages
348
Location
Canyon Ferry, MT
Before I tried the 190s in my 1-12 barrel, I emailed the techs at Sierra asking about how they would stabilize. They went to the trouble to load up a batch at around 2200 fps and shot them in their testing facility. Their results were a .5" groups at 200 yards. After hearing that, I loaded some up and they shoot fine.

Interestingly, Berger recommends 1-13 for their 175gr VLD, 1-12 twist for their 190gr VLDs, and 1-11 for their 210gr VLDs.
http://www.bergerbullets.com/catalog.htm

MM
 

Michael Eichele

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Joined
Jan 6, 2003
Messages
3,880
Location
The rifle range, or archery range or behind the co
Jeff in TX,

It sounds almost like you had 1 rifling slightly longer or shorter. A 12 twist isnt the best for the 190, but it will stabilize it. According to some new twist calcs, the 190 at 2600 is at 1.5 stability factor with an 11.25 twist. 12 I think is between there and 1.0 which is still acceptable. I have put these calcs to the test with hair splitting accuracy. 175's can be very accurate from a 12 twist, even 13 twists. If you still have that barrel, I would have it recrowned by a good smith.

[ 11-01-2003: Message edited by: meichele ]
 

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