Home Forums Reloading Big Game Rifles 270 Win/110TTSX loads?

Does anyone have access to a recent Barnes manual that would have loads for the 270 Win, 110gr TSX (or TTSX), and IMR4350? thanks!!

Go online to Barnes Bullets Load Data. Click on .277 and then .270. Print it out and you've got it.

DF

Barnes #4 manual

110gr TSX IMR4350 Min 57.5 @ 3287 Max 60.5 @ 3460

Thanks, TL!

Thanks also to you DF. But I had also looked there. But they only list Hunter and H4350, not IMR4350.

Gotcha, ST.

Bet that is one screaming round...

DF

It runs so close to a 7RM shooting 120 TTSX @ 3,500 that only your barber would know the difference.

I do not, but did buy an FN model 70 in 270 for a donor project, screwed up and shot the donor, as we've all read/heard here "DO NOT SHOOT THE DONOR!"

I worked up a load with RL-17 that ran 3550 fps from the 24" barrel and was dumbfounded to see it shoot 1/2" groups, was one of the hardest things I ever had to do when the time came to tear that rifle down for the original build idea.

I have that load data out in my reloading shop if you want it, give me a holla.

Gunner

Whew...

For a moment there, gunner, it sounded like you were coming out of the closet, brandishing a .270...

Glad you rescued that gun, converting it to a suitable round. You were tempted by 1/2" groups, but overcame...

Good man...

DF

Or a 26 Nos pushing 127 LRX's at 3,575...

DF

LOL, I was mainly astounded with the velocity, THEN the accuracy, went ahead with the build so I could push a 25 cal 100 gr TTSX at the same 3550 fps [25-06 AI] using near 10 grs more RL-22 than I did RL-17 in the 270.


Oh, and now I get to fire-form cases too.

You'll need a .223AI to be "Fire cool" which will give you more fire forming practice.

Of course, an FX-3 6x42 with M1 in Talley LW rings to round out the package...

DF

Yep it was my go to load with H4350 or Hunter when I needed to reach for a lead free load when trapped in California. It was amazingly effective when I started it at about 3375-3400fps and I have still never recovered one from even the biggest pigs. In various wet newspaper etc test it offered deeper penetration than a 150 partition.

It matched up nice with the 110 Vmax, ate the same powder loads and gave interchangeable points of impact to over 500 yards. Got ugly in the wind after that but was a lazer at reasonable distances. If I was not looking at longer shoots in ridiculous wind conditions out here I would still be running it.

Ya, that's where the Sierra bullets come in. LOL

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 110, Barnes 'TTSX'BT 27772
Useable Case Capaci: 61.797 grain H2O = 4.012 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4350

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 78 44.00 2457 1474 28633 8706 82.9 1.360
-18.0 80 45.10 2516 1546 30405 9015 84.2 1.327
-16.0 82 46.20 2576 1620 32287 9321 85.6 1.294
-14.0 83 47.30 2636 1697 34288 9622 86.9 1.262
-12.0 85 48.40 2696 1775 36413 9919 88.1 1.231
-10.0 87 49.50 2757 1856 38672 10210 89.3 1.201
-08.0 89 50.60 2817 1939 41075 10495 90.4 1.171
-06.0 91 51.70 2878 2023 43628 10771 91.5 1.142
-04.0 93 52.80 2939 2110 46321 11039 92.6 1.111
-02.0 95 53.90 3001 2199 49165 11297 93.5 1.080
+00.0 97 55.00 3062 2290 52186 11545 94.5 1.050
+02.0 99 56.10 3123 2383 55402 11781 95.3 1.022 ! Near Maximum !
+04.0 101 57.20 3185 2477 58826 12005 96.1 0.994 ! Near Maximum !
+06.0 103 58.30 3246 2574 62475 12215 96.8 0.967 ! Near Maximum !
+08.0 105 59.40 3307 2672 66366 12411 97.5 0.941 !DANGEROUS LOAD-DO NOT USE!
+10.0 107 60.50 3369 2772 70518 12591 98.1 0.915 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 97 55.00 3220 2533 61321 11770 98.8 0.976 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 97 55.00 2865 2005 43232 10840 86.9 1.144