Home Forums Reloading Big Game Rifles 270 Weatherby with 150-170 gr bullets

What are the real world speeds (and loads) from the 270 Wby using 150-170 gr bullets? Thinking of making a fast twist 270 Wby in the next year, maybe a Benchmark 8.5 twist cut at 24-25" but no longer.

I don't have any speeds for you,but the 270 Bee is a great round. Mine loved 150 grain bullets,and was a killing machine. I never could figure out why folks hated the brass. Never had a lick of trouble with the shoulder design. It was some of the easiest sizing stuff I ever ran across. I'd build a rifle around the round in a heart beat. keep us posted on the fast twist version should it take shape.

I like the 140 Accubonds in mine, kills anything I'm gonna shoot.

With mine with a 26 inch barrel, I loaded the following in these weights:

150gn Nosler Partition
69gn H 4350 for 3185fps
72gn H 4831 for 3195fps
70gn IMR 4831 for 3203fps

150gn Sierra BT
71gn Rel 19 for 3167fps
73gn Rel 22 for 3254fps
74gn WMR for 3253fps
71gn IMR 4831 for 3230fps

160gn Nosler Partition
72gn H 4831 for 3168fps
74gn Original Surplus H 4831 for 3184fps

Please drop a couple of grains and work up.

John

The original 270 wby ammo was loaded with 130 and 150 Hornady's. Never heard anyone complaining about killing ability. My favorite load involved a 140 Failsafe and RL 22. Average vel was 3335. This rifle had a Shilen SS match barrel, 1 in 10 twist. Shot this rifle a lot of years just replaced barrel. Liked the first one so much I replaced it with another one. Hasbeen

I have never had a problem with Norma made brass can't say that for any of the others including my first batch of Lapua 260 Rem brass.

My 270 Win cut at 23" (Benchmark 1 in 9 twist) shoots 150's at over 2900 fps and 160 gr Partition's at a bit over 2800 fps. Looks like I could expect a solid 250 fps above those speeds. My 270 is on a LH wood stocked Sako 85 so it won't see much mountain hunting time if any. My LH Rem 700 on a CDL action in 264 Win Mag is getting near the end of it's life, instead of selling it as a donor action for fairly cheap it might as well get a new tube. I always thought the 270 Bee was a cool round and would do well for anything from deer to moose and not kick bad. This gun will see all the rough country the Sako 85 won't..........

Got some of those sitting here, probably worth a look. I have no desire to go lighter than 140's even in the 270 Win, have a 260 Rem for those.



Thanks for the info, Of those I have H 4350 and H 4831 sc, also IMR 7828ssc. For newer powders IMR 7977 and RL 26 look to be good candidates for the 270 Bee.




It really should be more popular, the only other Weatherby round I might consider is the 7mm version but the 270 Wby would do everything I would ever want to do. Besides I have all these extra .277 bullets sitting here........

The .270 and 7mm Weatherby magnums are likely the best of the Weatherby's because they offer more bullet weight and barrel life than the .257 though they can duplicate its competence with lighter bullets and offer less recoil than the .300 and .340's making them more user friendly for the masses and also, still capable of taking all but the most dangerous of game under the most undesirable of circumstances.

John

My 7mm Wby. was always very consistent over the chronograph, a vary tractable cartridge to load. Not squirrelly at all.

That's how I see it too. You could make a good case for the 340 Wby as a dedicated grizzly/brown bear gun just like Bob Hagel did. That is the only other one I have considered at all.





I always thought of it as being just as good as the 300 Wby but having a lot less recoil. A 7mm 175 gr Partition at over 3000 fps is going to be a real thumper, no flies on the 160's either.