05 March 2016, 22:02
MHC_TX270gr Barnes TSX Loads for 375hh....?
Does anyone have a good 270gr Barnes TSX load for the 375hh....?
Thanks
06 March 2016, 00:11
30.06kingThese are my two for my Blaser R93, 24 inch barrel, 1:12 twist rate:
Norma case, Primer CCI 250, RL15 72.00 gns, COAL 91.50 mm ( 3.60 inch ), MV approx 2540 fps
Norma case, Primer CCI 250, Varget 74.00 gns ( slightly compressed ), COAL 91.50 mm ( 3.60 inch ), MV approx 2598 fps
Both loads give great 100 yds accuracy. If you want to stick with just one propellant, go with RL 15. Found this very consistent and generally great accuracy with the heavier .375 projectiles as well.
06 March 2016, 01:33
LabmanBarnes shows a max load of 77 Grains of Rel-15 with the 270 Gr. TSX. I use 76 Grs. in my rifle and get a velocity of 2744 FPS. Shoots great. It's my do everything load for the 375 H&H. One bullet Impala to Cape Buffalo.
Be careful and start well below the max recommended by Barnes and work up a half grain at a time watching for pressure signs.
http://www.barnesbullets.com/f...1/375HHMagnumWeb.pdf06 March 2016, 04:13
MARK H. YOUNGWhat Labman said. Mine actually shot best with 78 grains for 2775 FPS from a 23" barrel.
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https://www.facebook.com/pages...ures/627027353990716 06 March 2016, 05:22
pig feederI'm using 63.0 gr. Of Varget. Federal primers and Hornady brass. 3.56 oal. 2567 fps from a Blaser r8. Good luck!
06 March 2016, 05:36
DoglegI've used RL15 in 3 different .375s with 270 TSXs. Couldn't get past 73 grains in any of them. What's up with that?
Actually that something I see with Barnes bullets a lot. I can usually get their speed but sometimes at the starting load. In this case I couldn't get past 2700 fps. Not that theres anything wrong with that.
Lots of people seem to have good luck with RL-15 and the 270 gr. TSX, but it was mediocre in my rifle (a recent M70 African made in the new plant). I have had really good accuracy with 77.0 gr. of RL-19. I use Privi Partisan brass and Fed. 215 primer. I have not chronographed it, but it worked well on a kudu.
25 March 2016, 23:11
Austin HunterI use 70.5 gr of Norma 203B for 300 gr TSX at 3.57"; and that's a 100% load. Barnes lists 71.5 gr of RL15 as max, but that won't fit. So I'd say start working up with the Barnes load data to their max load on the 270gr or 100% load, whichever comes first.