Good accuracy with the 270gr TSX using 67gr of IMR 4064, PRVI brass and CCI 250 primers (safe in my 21-1/4" barrel Sako 85 Kodiak only). Mild pressure at about 2475 fps muzzle speed.

Nice rifle.

Nice rifle and accuracy. Try R15. I expect you'll get 2650 FPS or there abouts. In my 23 inch barrel I got 2725 with a top book load.

Mark

I've never had much luck with the 270 TSX in my M70. It shoots the 300 and 235 TSX great but I've have had no luck with the 270s or 250s.

I just given a couple of boxes of the new Barnes 270 LRX bullets so I'm going to give them a try.

Could up the powder charge according to Barnes #3 for an additional ~150 fps muzzle speed to probably just under 2600 fps with my 21-1/4" barrel using IMR 4064. Or use Re15 to get a bit over 2600 fps. Not sure how accuracy would be affected and might not be worth the effort for the marginal gain in muzzle speed.

Really like the 85's. The balance and feel of the Kodiak is excellent. However the caliber is a bit light for my liking. Just wish they made it in .416 Rem. Mag. Have used this .375 on Bull Moose. Didn't work too bad actually. But not my first choice for big Bear.

I use 67.5 grains of IMR4064 with the 300 grain TSX.

The first test loads with the 270 grain LRX were not promising only one load shot below 2" (3 shots). I loaded some up with H4895 and will try them next weekend.

Like Mark Young said try Reloader 15.
It seems to be really accurate and velocity gains are real, I use it for 300 grain bullets as well in my .375's.

I got a velocity of 2744 fps with a max load of RL-15 and the 270 TSX bullet. That's from a 24" barrel. Accuracy was great.

Barnes now shows a load for 84.5gr of Big Game with a 270TSX at 2841. Hubba hubba...

74.0 grains of Reloader 15. Win. case and a Federal primer.

270 TSX or A-Frame or Hornady. Doesn't matter, three shots under an inch and I'm done experimenting.

quote:

Originally posted by Ongwe:
74.0 grains of Reloader 15. Win. case and a Federal primer.

270 TSX or A-Frame or Hornady. Doesn't matter, three shots under an inch and I'm done experimenting.

I wish that I could make that work for me. My test load with the 300 grain bullets and IMR4064 is at the bottom of the target, the other groups are the 270 LRX and R-15

I shot 5 of these loads across my Oheler 35 today @ 62F.
Kimber 89 24" barrel
Remington Brass
Fed 215
270 TSX crimped in the second ring
84.5 gr. Big Game

Hi 2853 FPS
Low 2848 FPS
Avg 2850 FPS

What surprises me is that my Kimber 89 has a slow barrel. Most other 375's shooting the same load as mine print 50-70 FPS faster than mine.
No extraction issues. I did note some slight cratering on the primers.
I may resize this evening and reprime to check the tension on the primer pockets.

quote:

Originally posted by BaxterB:
Barnes now shows a load for 84.5gr of Big Game with a 270TSX at 2841. Hubba hubba...

I got better results with the 270 g LRX bullets and H4895.

The loads on the right are 69 grains of h4895 for 2665 fps and 68.5 grains of H4895 for 2632 fps. Extreme spreads were close to 20 fps. Much more consistent than the Reloader 15 loads.

2700 plus isn't a problem with the Ruger or the H&H...but my using load has been 2500 FPS with the 270 and 300 gr. bullets for many years with most of the cup and core bullets..You can kick that up with Barnes or GS Customs to 2700 FPS with the 270s and 2600 with the 300 and its a real masher on about any animal..I saw a 2700 gr. GS Customs penetrate a buffalo from stem to stern on a frontal shot, recovered the bullet in the skin next to the anus. He turned, took two jumps and piled up dead. Kills that fast are not common on Cape Buffalo..

My best results are with RL-15, both in velocity and accuracy with 250, Sierra BTSPs and 285 gr. Speer Grand Slams.

I reloaded some of the 84.5 gr of Big Game behind a 270 Gr TSX that yielded 2850 FPS.
The primer pockets were snug. Not as tight as new brass. That being said this test was not with new brass but once fired brass. This reload was the third loading.
It is likely a safe load. At least in my rifle.
We will check it in my sons model 70 in the future.
This is a smokin' load!

EZ

I suspect that is a good enough load to use safely...

I like 2500 FPS in my 375s on DG game, as less velocity gives me better and straighter penetration with all bullets, even monolithics, albeit less expansion..and Im good with that..but hey that's been common knowledge for many years, some of the new bullets claim otherwise I suspect but I don't fix things that ain't broke..

A pet load of mine for years in the 375 H&H has been 72 grs. of RL-15 behind the 285 gr. Speer Grand Slam...a great bullet at 2676 FPS off the chronograph for a 10 shot average...hold er tight. I will be testing it in my newly acquired .375 Whitworth this week..

No need to beat yourself up with recoil. 66.5 grains of R-15 shoots well in my Winchester model 70 with every .375 bullet from 235 grains up to 350 grains.

I found some old Nosler 270 gr. partitions at a gun show. Those were made of brass tubing with the relief belt and long discontinued. Loaded them with 70 grs. of RL 15 for a buffalo cull in Australia in 2014.

I whacked over 30 buff in 3 days and the performance of the old Noslers was stellar. It never ceases to amaze me that when American industry makes something good, they soon discontinue it for a new and improved version and of course, lesser cost.

quote:

Originally posted by eezridr:
I reloaded some of the 84.5 gr of Big Game behind a 270 Gr TSX that yielded 2850 FPS.
The primer pockets were snug. Not as tight as new brass. That being said this test was not with new brass but once fired brass. This reload was the third loading.
It is likely a safe load. At least in my rifle.
We will check it in my sons model 70 in the future.
This is a smokin' load!

EZ

I use this same load in my 375H&H with the 270gr Barnes X.......it's fast and accurate.

I have had a half dozen 375's and found that they all liked IMR4064. It just seems to work well. It may not generate the fastest velocities but often the most accurate with either 270 or 300 grain bullets. Always worth a try...

quote:

eddiel4
posted 10 May 2020 04:37
I have had a half dozen 375's and found that they all liked IMR4064. It just seems to work well. It may not generate the fastest velocities but often the most accurate with either 270 or 300 grain bullets. Always worth a try...
Edward Lundberg

Yes, agreed, IMR4064 is a great powder for accuracy loads with 270 gn. Also Varget ( AR2208) I found came in a very close second and a very handy backup if IMR4064 ever became unobtainable.

quote:

Originally posted by geoff:
I found some old Nosler 270 gr. partitions at a gun show. Those were made of brass tubing with the relief belt and long discontinued. Loaded them with 70 grs. of RL 15 for a buffalo cull in Australia in 2014.

I whacked over 30 buff in 3 days and the performance of the old Noslers was stellar. It never ceases to amaze me that when American industry makes something good, they soon discontinue it for a new and improved version and of course, lesser cost.

Geoff, ain't that the truth. John Nosler started making his Partitions on a screw machine in his garage in Ashland, Oregon, about 1946 or so.

The current production copper jacketed bullets perform well, but not as good, IMO, as the old bullets.

For comparison, I have not found good old cotton boxer shorts for decades, just the new blended fabric that's hot and sticks to your butt that is mostly made off-shore. LOL

Used IMR-4064 for years in my 30-06 and 375 H&H and no complaints other than it didn't meter as accurately or smoothly as some of the new RL powders, RL-15 mostly but H414, 760 etc..that I never have to weigh and no grain cutting...

I have some of the old bullets, 30 and 284 caliber Western Arms, Western Silvertips, old round nose corelokts, and some 25 cal. Westerns in 100 gr. HPs, all these bullets work great on deer, some work great on elk and PG..I probably should have kept them for collectables, but recently I loaded most of them up and they are good to go..I did save the old brown boxes..

I never found a 4064 load that would break 3" with 270 TSX.

I did find that 76gr of RL19 was a killer at .45" (with a 4x scope). In fact, 74, 75 and 76gr all shot .9" or less in my Remington.

quote:

Originally posted by Bill/Oregon:

quote:

Originally posted by geoff:
I found some old Nosler 270 gr. partitions at a gun show. Those were made of brass tubing with the relief belt and long discontinued. Loaded them with 70 grs. of RL 15 for a buffalo cull in Australia in 2014.

I whacked over 30 buff in 3 days and the performance of the old Noslers was stellar. It never ceases to amaze me that when American industry makes something good, they soon discontinue it for a new and improved version and of course, lesser cost.

Geoff, ain't that the truth. John Nosler started making his Partitions on a screw machine in his garage in Ashland, Oregon, about 1946 or so.

Bullet makers are always ready to make successes into failures.

They need to hear and follow the oldest prescription against so-called "progress":

IF IT AIN'T BROKE, DON'T FIX IT!

quote:

Originally posted by Labman:
I got a velocity of 2744 fps with a max load of RL-15 and the 270 TSX bullet. That's from a 24" barrel. Accuracy was great.

That's about the same as what I get!

I need to remember this thread.

For that sad day when I run out of Hirtenberger 272 grain ABC bullet factory loads at 2,550 fps.

They kill everything at which they are rightly aimed.

Without fail.

My hope, which has no basis in anything but hope, is that RUAG will someday bring them back.