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Joined: Sep 2001
Posts: 19,082
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2001
Posts: 19,082 |
Here's a data dump from some recent load development,
308 Win
26" Rem 700 SPS Varmint
110gr Barnes TTSX
Win brass
CCI 200
2.79" OAL
RL-7
44.0 gr - 3346 fps, .75 moa (chrono at 30 ft, target at 155 yards, 4-shot groups)
45.0 gr - 3392 fps, .75 moa
46.0 gr - 3476 fps, 1.2 moa (slightly stiff bolt)
47.0 gr - 3543 fps 1.2 moa (stiff bolt, ejector smear)
W748
54.5 gr - 3322 fps, .75 moa
55.0 gr - 3347 fps, 1.5 moa
55.5 gr - 3413 fps, 1.0 moa
The RL7 leaves a bit of room in the case, the W748 is compressed. I think H335 might be about perfect for optimizing velocity to case capacity.
I didn't moly these, knowing the W748 compression would have pushed a slick bullet back out of the case some.
Muzzle velocity would be about 25 fps faster than chrono velocity at 30 feet.
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Joined: Jul 2007
Posts: 5,173
Campfire Tracker
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Campfire Tracker
Joined: Jul 2007
Posts: 5,173 |
What do you have in mind for that light Barnes?
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Joined: Oct 2002
Posts: 96,121 Likes: 1
Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
Posts: 96,121 Likes: 1 |
Do you have any TAC Shane? I think that might make it sing
"Dear Lord, save me from Your followers"
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Joined: Feb 2011
Posts: 6,314
Campfire Tracker
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Campfire Tracker
Joined: Feb 2011
Posts: 6,314 |
Just out of curiosity, how far off the lands?
I enjoy handguns and I really like shotguns,...but I love rifles!
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Joined: Sep 2001
Posts: 19,082
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2001
Posts: 19,082 |
Guy, you know I tend toward the heavies, but I was kind of intrigued to see how fast these would go in a 26" 308. Not a LR bullet by any means, but at 3400 fps it should retain 2000 fps to 500 yards.
I'm planning to use this bullet on mule deer in a few weeks.
Steely, No I don't have any TAC onhand. I agree though. I was crunching some data through Quickload and TAC, AA2230, and H335 all look real good for this combo. I tried RL7 and W748 because that is stuff I had on the shelf.
sas', These are about .170" off the lands. I seated them with the top groove in the bullet just above the case mouth.
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Joined: Sep 2001
Posts: 19,082
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2001
Posts: 19,082 |
Like all Barnes stuff the 110gr TTSX is long for it's weight at 1.05", the Hornady 150gr Spire Point is 1.067". Left to right, 110gr VMax, 110gr TTSX, 180gr PSPCL, ![[Linked Image]](http://img.photobucket.com/albums/v461/montanamarine/Loading/P9240041.jpg)
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Joined: Sep 2001
Posts: 19,082
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2001
Posts: 19,082 |
Ballistics to 500 yards, at 3400 MV, 4000' el, std atmo.
Gunsite altitude : 4000 ft.
Gun / Ammunition : .308 Win.
Bullet : .308, 130, Barnes 'TTSX'BT 30873
Bullet weight : 110 grains or 7.13 Grams
Muzzle velocity : 3400 fps
Crosswind speed : 10 Mph
Ballistic Coefficient(s) (G1):
C1=0.295@V>0 fps;
-------------------------------------------------------------------------------------
Range Velo Time of Energy Path Deflection Total Sight correction Target
city flight to at crosswind drop for setting new lead
LOS of 10.0 Mph zero range 20 fps
-------------------------------------------------------------------------------------
�Yards fps s ft.lbs. in. in. MOA in. Clicks MOA yds �
-------------------------------------------------------------------------------------
| 0 3400 0.0000 2823 -1.7 0.0 ----- 0.0 ------ ----- 0.00
| 50 3250 0.0452 2580 +0.5 0.2 0.37 0.4 -2.8 -0.95 0.30
| 100 3105 0.0925 2355 +1.8 0.7 0.72 1.6 -5.0 -1.73 0.62
M 148 2971 0.1397 2156 +2.2 1.6 1.04 3.6 -4.2 -1.45 0.93
| 150 2965 0.1417 2148 +2.2 1.7 1.05 3.7 -4.2 -1.43 0.94
| 200 2830 0.1936 1956 +1.7 3.0 1.44 6.8 -2.3 -0.80 1.29
X 250 2698 0.2482 1778 0.0 4.9 1.85 11.0 0.0 0.00 1.65
| 300 2571 0.3052 1614 -2.9 7.1 2.27 16.4 +2.6 +0.91 2.03
P 302 2566 0.3075 1608 -3.0 7.2 2.28 16.7 +2.8 +0.95 2.05
| 350 2446 0.3645 1462 -7.0 9.8 2.67 23.0 +5.5 +1.90 2.43
| 400 2326 0.4274 1321 -12.6 13.1 3.13 31.2 +8.7 +3.00 2.85
| 450 2208 0.4939 1191 -19.8 17.0 3.62 41.0 +12.2 +4.21 3.29
| 500 2094 0.5637 1071 -28.9 21.6 4.12 52.6 +16.0 +5.51 3.76
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Joined: Jul 2007
Posts: 5,173
Campfire Tracker
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Campfire Tracker
Joined: Jul 2007
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Dang, and I thought I was going light for the .308 when I loaded up a batch of 125 gr Nosler Ballistic Tips for a friend!
The little 110 Barnes should do real well. I shoot some 110 gr Sierra hollow point varmint bullets at rock chucks time to time from my .308 Win. The light varmint bullet messes up those chucks real bad...
Interested in seeing how this works. I'll bet it works just fine on the buck.
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Joined: Sep 2001
Posts: 19,082
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2001
Posts: 19,082 |
I'm going to shoot the 110 Barnes beside the 110 VMax and see how they do. I'm thinking they will shoot same POI if started same speed. Both are advertised as BC .295.
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