Barnes 6.5 x 55 120 gr TSX
- Thread starter rodkayak
- Start date
I'm just wondering how a 120gr bullet at 3200fps retaining 100% of its weight hits 2 shoulders doesn't damage the meat and doesn't exit?
No offence, just sounds too good to be true.
DAThornley
Well-Known Member
hi tommy, yes excellent groups with both tsx and ttsx, they are a really good round, bit fiddly to work how far back off the lands suits your rifle but well worth the effort once you get a sweet load, 
deerly departed
Well-Known Member
Isnt the 33,000RPM a bit misleading bearing in mind that it is in the air for a few seconds at most? And surely it rotates at the rate the barrel imparts on it like one revolution in 8 or 12 allowing for affects of drag ?http://www.youtube.com/watch?feature=player_embedded&v=uQx2eHpDVnE
I count about 6 proper revolutions
The barrel is 1:7 twist. It does spin at that rate. My chrono maybe out. If you look at the petals they are twisted round like a prop on a crash landed Spitfire. In flight it may not manage many revolutions but as it deaccelerates in the animal it will manage more as it has the same spin but less speed. I reckon that it takes much more time to traverse the animal than it does to reach it. I cannot do the maths without putting sensors on the buck and then shooting it. I am not sure it will oblige.
The rotational energy is less than 0.5 % of the forward kinetic energy of the bullet. If it was more , the rifle would twist in your hands due to the counter rotational reaction torque, so nearly all of the destructive energy is in the forward momentum being bled off.
The rotational energy is less than 0.5 % of the forward kinetic energy of the bullet. If it was more , the rifle would twist in your hands due to the counter rotational reaction torque, so nearly all of the destructive energy is in the forward momentum being bled off.
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Was just wondering the same thing as I may have a dabble with the TTSX
I've making the change over to copper and gone for the Barns 127 gr LRX and yet to shoot a deer, as i'm still developing a round for my 6.5 x 55,
I've gone for N 150 at 41 g, which is producing around the 2800 fps, and i struggling to understand why using N 160 and to get 3000+ fps you must be using a compressed load?
Due to the length for copper bullets?
But this is going to be a very interesting thread, and great to see all the Energy was dumped in the animal, with good bullet weight retention.
well done
I've gone for N 150 at 41 g, which is producing around the 2800 fps, and i struggling to understand why using N 160 and to get 3000+ fps you must be using a compressed load?
Due to the length for copper bullets?
But this is going to be a very interesting thread, and great to see all the Energy was dumped in the animal, with good bullet weight retention.
well done
monarman
Well-Known Member
I know it's a dodgy subject but has anyone noticed the difference between lead and copper when head shooting deer?.... I have a park cull to undertake and have to use copper and head and neck shoot (as part of the contract)..... I'd prefer to use lead for the reliable expansion and destructiveness....
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Does anyone have any experience of the 120 grain TTSX in 6.5x55 as a factory load (Sako Powerhead 2)?
Velocity is supposedly 2800 FPS which is somewhat more sedate than the velocities stated above. Given that E=mv2, velocity is the big one!
Velocity is supposedly 2800 FPS which is somewhat more sedate than the velocities stated above. Given that E=mv2, velocity is the big one!
You don't need frangible bullets for head and neck
just shoot them in the right place
I have used three brands on head and neck
The sheer velocity of the bullet passing through the skull doesn't require break up
Neck shots, even those that miss the bone have such a velocity they impart a huge shock to the CNS that they will kill or incapacitate with ease.
Its the reason i advocate high neck rather than low neck shots.
Hi.
Yes, I've used that SAKO factory cartridge in my M12 which has a 20" barrel. I chrono'd 6 shots for an average of 2710fps with an SD of 11fps. Grouped a shade under 2" at 210m.
Shot Roe and Fallow between 40m and 185m with excellent results. The exit hole was between a 2p - 50p size on all ranges.
I will head shoot when appropriate to do so and I definitely head shoot more than I neck shoot but less than I chest shoot. For the last 10 or more years I have been using Barnes TSX and TTSX for all my stalking in various calibres.
My experience combining the two is that I am entirely happy to use lighter for calibre TTSX bullets for head shooting as invariably with a well placed shot I see the bullet strike, mist of vapour and find both eyeballs prolapsed if you know what I mean. This would not happen if the bullet was not expanding properly. I have complete faith in the 120g 7mm TTSX and the 130g 308 TTSX for this application. I haven’t shot enough with the 100g TTSX in 6.5 calibres to have a valid opinion but suspect it would work extremely well.
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