[Red Monkey]

I know the Barnes 110 gr. TTSX is longer than the Barnes 110gr. TSX, 110 gr.Accubonds and Pro Hunters. What I would like to know is can use the same load data, say 30.0gr of 10X or 32.5 gr. of H335 with the TTSX? I would think that a longer bullet would = less case volumn and create higher pressures. All loads are in SSA SR cases loaded to 2.3oal.
These will be used in my 6.8XT.

 

[tbready]

With the XT powder volume is almost unlimited with its specs. Always work up slow and load the 110 gr TTSX to 2.30'' no less. The bullet is really long but some folks here have good results with the 110gr TTSX. HTR is the one to ask on this one.

 

[HTR]

I have had excellent accuracy and about 2700 FPS from Cardinal Armory 16" barrels using the 110 TTSX, loaded out to 2.30, and with 29.5 grains of RE 10X.

With the XT, you might be able to get in another 1/2 grain, but use caution and work up.

 

[Test_User]

Technically you should really never use the same load data for a different bullet. This is speaking of max loads of course.

A couple of things with the TTSX. Make sure when you load it the neck to body junction ( ogive) is not inside the case neck. To do this you really need to load to 2.295 you can go a bit less but as much as you can get from your mags the better. Compared to the TSX laoded to the same COAL the TTSX will absoltuely create more pressure as it is taking up significantly more of the case space. The question is if your load for the TSX is not maxed for it then it maybe fine for the TTSX but it will be at a higher pressure just possibley not at the max of 55K. My suggestion as with all loads is start a full grain lower and load 2 rounds and then two more .5 up and then finally 2 more at the load you want to stop at or continue to go up in .5 grain steps until you see the first signs of a swipe then back down .5 grains and set that is your max. From there start to work your tuning to find the accuracy node but never exceeding that max you set. If you have to go down some then so be it. The longer you load the TSX and TTSX type bullet the better the accuracy will be. If you want max vel do not crimp your bullets. If you are suing a standard FL die you have plenty of neck tension. I have yet to see a single person report a bullet setback unless they were using a STAG with no M4 ramps whihc is jsut looking for trouble.

 

[Red Monkey]

GREAT info. Thanks a bunch.
I have 5 rounds each of the following loaded. 29.0 gr., 29.3 gr., 29.5 gr., 29.8 gr. 30.0 gr. with 10X under the 110 TTSX I'm sure one of these will give me the accuracy I'm looking for. My first try with 27.8 gr. of 10X shot a 'pattern' rather than a group so I put the TTSX's on the shelf and worked with the 85gr. TSX which seems to be one BAD bullet!! The first five 85gr. TSX's I loaded with 29.5 gr. of 10X shot 3/4 inch so I stopped there. Four were in one ragged hole with the 5'th almost touching the others. Now if I can get the 110TTSX's to do that I'd be REAL happy!!
Thanks again for the load info. I'll watch for swipes and excess pressure signs. I'm not trying to get MAX velocity just an accurate load although from what I've read here the faster you push the Barnes bullets the better they expand. I'll bet that HTR's load of 29.5gr. of 10X will be what I'm looking for with the 110 TTSX. I also have several different loads with 110gr. Accubonds and Sierra Pro Hunters to test and 2700 FPS velocity is just about right IMHO.
I've got to get a new camera so I can post pics of my range results but between work and the 'Honey do list' the new camera hasn't gotten done yet.

Tim_W,
As far as I know there isn't any 'published' loading data for the weapons platforms we are loading for here, AR Performance 6.8 barrels with DMR chambers or as I call it the '6.8x43'. I have been relying on you, HTR, Harrison, and the other 'old hands' for reliable load info. and so far it has be perfect! We are really loading for a 'wildcat' cartridge.
Thanks again everyone.
Hal

 

[ccoker]

I ran 30g of H322 with the 110x Barnes TTSX
no pressure signs with my 18" DMR stainless barrel from Harrison
absolute terror on game

with my recon, after I shot 100 rounds of 27.8g of RL10x and Hornaday brass I shot a small group of 30g RL10X, SSA brass loads
no signs of pressure
I was in a hurry and only shot at 50 yards but the group was about a 1/2"
at 100 yards and 3 shots at 100 yards was around an inch or so with a 4x scope


I need to get back out and do some testing and I want to load some 85g

Barnes bullets like to be driven fast according to them

 

[HTR]

I ran 30g of H322 with the 110x Barnes TTSX
no pressure signs with my 18" DMR stainless barrel from Harrison
absolute terror on game

with my recon, after I shot 100 rounds of 27.8g of RL10x and Hornaday brass I shot a small group of 30g RL10X, SSA brass loads
no signs of pressure
I was in a hurry and only shot at 50 yards but the group was about a 1/2"
at 100 yards and 3 shots at 100 yards was around an inch or so with a 4x scope

I need to get back out and do some testing and I want to load some 85g

Barnes bullets like to be driven fast according to them

charles,

What was your velocity with H322?

 

[ccoker]

don't own a chrono.... (yet)