Range report, .270 Barnes 110 TTSX

[elpac3]

Have recently been experimenting with the Barnes 110 grain TTSX for the .270. The old standby load has been the Nosler 130 ballistic tip ahead of 55 grains of IMR 4350 clocking out at 2980 fps.

Also began experimenting with the new temperature stable powders IMR 4451 and Reloader 16.

Was given a box of Barnes 130 TTSX this summer which I loaded up with IMR 4350. Played around with different load and seating depths and never got them to shoot less than 2" at 100. THe standby Nosler loads will print less than .6" all day so I was rather disappointed. Tried the 4451 with the same results. Dropped in some Reloader 16 and got the groups down to .7".

started playing with the 110's a couple of months ago. Problem I found was there is no IMR 4350 data. After talking with Barnes technical folks, they indicated you can use any similar lead jacket bullet data but start at the bottom and work up. Tried different seating depths and found the Barnes copper tend to like about .130 off the lands in my rifle. Worked up to 55.6 grains for 3140 fps but the best I could do was about 2" at 100. Same story with the 4451 - worked up to 56 grains, 3144 fps, 1.6"

Since I had good luck with Reloader 16 with the Barnes TTSX 130, I started with the published load for 130 copper and worked up to 56 grains Reloader 16 which produces 3166 in my 24" barrel. Group size came down to .4" with a two shot bug hole and one "flyer" about .23" of the other two.

Was a little nervous "going off the ranch" creating a load based on interprolated data from other loads and powders - but things worked out. Seems like all three powders share the same approximate burn rate (based on conversations with Alliant and IMR and Barnes technical folks) so working in small increments is the secret to success as well as careful measuring of case heads and checking primers for pressure signs as well as the classic bolt lift forces.

 

[Nevada Ed]

Nice going...............
Glad to see that you finally got that little 110gr to settle down.

It will work on Antelope and I would be interested on how it would handle deer size game, if you ever try it out.

I have yet to buy any "New" powders with the add on, since I
still have lots of old stuff, I am trying to burn up.

Thanks for the post.

As a note;
my old 130gr BT Sierra's would rub the top of the card board ammo box when I shut it.
Might say that they had a long OAL, stuffed with full load of IMR4350.

 

[elpac3]

Plan on this being the Minnesota deer load for the next years season. May also get in a hog hunt in January. Will be interesting to see the performance.

Was running low on the IMR 4350 and thought I would give the new temperature stable powders a try.

Have to keep IMR 4350 in the line up but looks like Reloader 16 will be going on the shelf now too,

 

[IAM Rand]

I have had good luck with IMR 4350 using the same bullet, 130 TTSX. I wanted to play around a little to I switched it RL-19 and have had no problems putting them about .5 at 100 yrds.

I also switched to the 129 LRX using the 19. About the same results. I have 2 different rifles that shoot the 270 so I am going to try and work up one load that will do well in both. Problem is that on rifle has a magazine which is limiting the C.O.L. I am going to use the shorter length and see if I can come up with a load for both that will keep me under an inch.

 

[elpac3]

I found that with the TTSX in my gun they like to be seated short - generally giving about a .125-.130 jump. C.O.A.L. is less than 3.3"