TTSX or GMX in 9,3

[Olsen]

I got some Hornady GMX for my 9,3, but they are flat in the nose, so now I thinking about Barnes TTSX.
Anybody know how much the flat versus sharp point, nose have to say on longer shots, like 250-300 meter

[Blasernovice]

I think Nosler do a 250gr accubond. That would be a good 300yd projectile b

[Olsen]

I think Nosler do a 250gr accubond. That would be a good 300yd projectile b

I have Accubond, but I want bullet without lead

[Vaughan]

The 250gr TTSX shoots very well in my R93 9,3x62, so from a precision standpoint, it would make a good lead-free 300m projectile. Not sure how well it would open at that range. 180m is roughly the longest shot I have taken with it on moose. Worked fine.

[Olsen]

The 250gr TTSX shoots very well in my R93 9,3x62, so from a precision standpoint, it would make a good lead-free 300m projectile. Not sure how well it would open at that range. 180m is roughly the longest shot I have taken with it on moose. Worked fine.

What is your load data for the TTSX

[Vaughan]

I use 57gr of Varget and CCI mag LR primers. See the attached file. I have not tweaked any of the QL settings, such as case volume, but I have shot up to 59gr without problem. The 57gr load is mild, easy to shoot and it has worked for me.

9,3x62 250gr TTSX.pdf

[dchamp]

I haven't tried the 250gn GMX but my son and I both use the 250gn TTSX in our 9.3x62's. I used it on moose in Canada at about 70yds. My son used it on plains game. His longest shot was 300yds on a Blue Wilderbeest and dropped him. His load is 61gn Alliant's 2000MR at 2550f/s out of a CZ550 and mine is 62.2gn CFE223 at 2545f/s out of a Blaser R8. We have had zero problems with the TTSX.

[stokesrj]

The GMX has a G1 Ballistic coefficient of .360 and the TTSX is .366 which means the flight would be indistinguishable inside 300 yards or meters.

[Olsen]

The GMX has a G1 Ballistic coefficient of .360 and the TTSX is .366 which means the flight would be indistinguishable inside 300 yards or meters.

When I look at TTSX 250 grain it say BC 0.44 and GMX .360, but im not sure how those numbers work

[stokesrj]

I see you are correct, the source I used was in error for the Barnes 250 grain TTSX bullet listing it at .366 which is correct for the TSX not the TTSX which is as you stated .44.
The way you use these numbers is to plug them into any Ballistic calculator such a JBM. The calculator will then tell you how fast the velocity will decay at distance and the result on drop, wind drift, velocity and energy.
In this case with a starting muzzle velocity of 2550 FPS the result at 300 yards for the Barnes 250 grain TTSX is that it has slowed down to 1978 FPS, drops 17” from a 100 yard zero and drifts 8.5” in a 90 degree 10 MPH cross wind. Where the GMX starting also at 2550 FPS has slowed at 300 yards to 1873, the drop has increased by one inch to 18” and wind drift has increase by 2” to 10.5”. You wouldn’t be very concerned with the additional velocity loss or the additional inch of drop. But depending on your wind dopping skills that 2” additional drift could be a factor worth considering. I personally would not use either bullet at 300 yards, I’ve seen some miserably slow kills with other monolithic bullets when velocity is below 2000 FPS.
I would limit either bullet to 200 yards and at that range the BC simply doesn’t matter.