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375 Snipe Tac...Barrel and Bullet tests

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Unread 09-13-2008, 10:35 PM
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Join Date: Jan 2008
Posts: 436
Re: 375 Snipe Tac...Barrel and Bullet tests

Ok,I will post new developments as they happen. The BC of 1.5 is a .375 bullet and it hasnt even been fired yet so how it performs in the real world remains to be seen. I am getting very close to testing these in an 8 twist barrel. I think all the components to test the 375 will be available prior to the 30s.
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Unread 01-03-2010, 11:32 PM
POP POP is offline
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Join Date: Jul 2001
Location: CHEYENNE, WY
Posts: 1,440
Re: 375 Snipe Tac...Barrel and Bullet tests

Originally Posted by Fiftydriver View Post
Is anyone looking to make a bullet that is actually legal for big game hunting out here in most of the western states when many require an expanding bullet?

high BC is great, high velocity is great but if they are not legal to use on big game, there are alot of us out here that will not be included in that customer base.

I think that is where the aluminum tipped bullets have extreme potential but very few seem to be going that direction at this time. Perhaps because it so much easier to produce the solids.

.375 RBTAT Hunting
The .375 RBTAT is a premium match grade hunting bullet specifically disigned
for long range .375 cartrages like the .375/408 CheyTac.
This advanced ULD projectile brings out the full potential of your long range
hunting rifle.
Suggested barrel twist rate for bullet stability greater than 2800 fps is 1:10.5
Weight- 370gr.
B.C. - .948
Design Velocity - 2800fps - 3200fps
"Weatherby was too long so I nicknamed it "Bee""
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Unread 02-15-2010, 12:52 AM
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Join Date: Dec 2009
Posts: 214
Re: 375 Snipe Tac...Barrel and Bullet tests

Originally Posted by Black Diamond 408 View Post
You will be the first, i have no intention of testing any of the Vikings or LM 119 bullets, i only have the 2 bullets a customer sent me to look at. I have 3 barreled actions going to Norway, they are going to shoot these bullets at 3000 yards or farther. I dont even know where to start for loading data, prolly Re25 or slower. I have a hard time finding a place to shoot past 700yds.

Dave, in 2008 you had 3 actions going to Norway that would shoot the Viking 403 gr and the LM 119 408 gr.....Did you get any feedback on these guns? Also, what twist went with these actions??

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Unread 03-05-2010, 01:58 AM
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Join Date: Dec 2009
Posts: 214
Re: 375 Snipe Tac...Barrel and Bullet tests

Dave, when you load up the 350 gr SMK for your 375 snipe tac, what OAL are you using?????


Originally Posted by Black Diamond 408 View Post
I just came back from testing the new style 350gn SMK.

Seated .015 off the lands.
Retumbo powder
Fed 215M

140grns ave fps 3149 ES 8

142grns ave fps 3211 ES 9

I fired the 140grn loads at my 700 yard plate, 8.75moa added...all three shots landed on steel, spread was about 4" The cases extracted easy, no marks on case head at all.

The 142grn load was .5 moa less, all shots landed on steel as well. The cases extracted easy, just a bit of shiney mark on case head. Temp was in the low 80's I used .770 for the BC in Exbal, came out perfect. This is one big Thumper!

700 yard steel target

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Unread 06-02-2010, 11:47 AM
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Join Date: Dec 2009
Posts: 214
Re: 375 Snipe Tac...Barrel and Bullet tests

Originally Posted by Joel Russo View Post
Very nice Dave.

Let us know how the new SMK's work out of that 12 twist.

Getting ready to barrel another up, but I went the other way on the twist. I wasn't 100% happy with the 11.5.

Joel, you said you went the other way on the twist here....What twist did you use for your new barrel and do you have any test results from the range on this?

Im also assuming you are using a 375 snipe tac here??

Im building a 375 snipe tac and have to make a decision this week on what twist were going to cut the barrel to.

I was going to go with the a 1-8 for the new GS 414's, but GS is still fine tuning this new bullet and I have to cut the barrel asap.....

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