I just started reloading for 270 again and really liked the tread on 130 grain bullets. So just looking for ideas on the heavier bullets.
Thanks,
Darryl

Darryl, my best load so far using the 140 grain Hornady Interlock Boat-tail is:
57.0 grains H4831SC
WIN WLR primer
W-W case
From a 22" Ruger M77 at 10ft. the load clocks 2810 fps measuring with a Beta Master Chrony. Groups average 7/8" @ 100 yards in the Ruger. Velocity was clocked at 75F.

My 22" ADL shoots very well with 59 grains of H4831sc and a 140 Accubond. This is a fairly stout load so be sure to work up.
Velocity is right around 2950fps.

try
54gns of imr 4831 with the hornady 140grn ,cci br primers

53.4 grains of RL17 and 140 grain Hornady Interlock with Winchester LRP.

For my Pre-64 .270, it's 57 gr. of Rldr-22 and a 150 Gr. Partition. Lottsa groups under an inch. This load is giving me 2930 fps and is 1 gr. under max. in the book. Perfect for sheep & caribou.
Bear in Fairbanks

Anyone use H4831sc with 150 grain partitions? My 270 is pre-64 model 70 that I bought from Handwerk here on the fire.....I love it! He is great guy and not really sure why he helped me find the rifle that I had been dreaming of for alongtime. I am going to save this info thanks guys.
Darryl

How you doing Darryl? That is a nice rifle!I DO shoot 150 Partitions[as well as 150 TSXs and Hornady 150s] all with 57.0 H-4831sc, win cases and Fed 210 primers out of my Sako Finnbear, and they all shoot verrry good! So, go ahead and use said powder. I'm thinking you will be good to go. Let us know how it turns out. Tom

58grs H4831 over a 150gr Speer Grand Slam in a 22" bbl tang safety M77 chrony's right at 2875 fps and shoots groups better than 130 grain bullets and for that matter...better than some varmint cartridges I have owned. There were days at the range if I was doing my part it would group at 5/8".

Darryl, I forgot this: Sako has 24" barrel, and FPS avg is 2900.

i have been using 57gr of rl19 and 140gr balistic tips standered cci primer in rem casing hammer of thor grin

I have H4831sc, RL19, IMR4831 so I am glad to hear you guys are having good luck with them.

150 grainers are my first chioce for the 270, may as well take advantage of the higher Sd and BC, it shoots just as flat, and the wind doesn't push the 150 around as much.

Have been running 58-59 grains of H4831 with 150's in my 270's for decades. Liked RL22, but that load lost a fair amount of velocity and ES opened way up in frigid weather when I chrono'd them in warm weather vs cold weather.

Most 270's with 22 inch bbls will see 2875-2900 shooting 150's.


Casey

I have had good success with 57gr. of H4831SC and the 150gr. Partition. My chrony shows 2850fps, the targets are very nice and I have used quite a bit of freezer paper as a result!
Keep it simple and good luck.

58-58.5 gr of RL22 or Norma MRP with 150 for 2950-2975.

Another grain to a grain & a half for the 140's to get to around 3025.

Pretty stiff loads so start 2-3 grains less & work up.

MM

Can you use H4831 and H4831sc loads in place of the other?

Yes you can; same powder, same loads, different granule length, direct substitution. Lot to lot variance is your only issue, so the standard warning applies; drop back a couple of grains and work back up when switching.

140 grain Partition, 57 grains of IMR 7828ssc and Win Mag primer, close to max load, very accurate.

In my 270 loads, H4831SC seemed to be a tad faster--Ten shot strings consistently averaged 25-30fps faster--and I have chrono'd those rifles a LOT with H4831.

Maybe I'm being anal-careful, but I would also recommend dropping back a couple grains when switching to the SC powders.



Casey

56 grains of RL-22 gave very good accuracy in my .270 with 150-grain partitions but I never chronographed the load. That same powder charge with 160 grain partitions also gave very good accuracy and chronographed just over 2,700 fps. Many guys don't like the .270 160-grain partition because it's "only" a semi-spitzer but it actually has a better ballistic coefficient (.434) than the 130-grain partition (.416) and the 140-grain partition (.432). It also has a great sectional density of .298 and has been very accurate in every .270 rifle in which I've tried it.

Have you used the 160's for hunting? I have never, but have often thought of them as a bullet for the bigger stuff with a .270. It would be fun to hear from a few guys that have used them.

Nope, never shot anything with a 160 partition. I often thought that if I ever took a .270 elk hunting, that is the bullet that I'd use but I generally hunt elk with a .338 WM.

For the 140's I like the Hornady and the Sierra HPBT along with 57/H4831, 54/IMR4350, 57/R22 and 57/7828.

150's I like 57/R22.

Normally, I use W-W brass and CCI BR2's.

Dober

150gn Nosler Partition
57.5gn RL-22
CCI-250 primer
COL 3.350
VEL. 2951 (24" brl)
1954 Win 70 Supergrade

Dober, have you used the Sierra HPBT as a hunting bullet? I know the 165 grain in .308 is tough is the 140 like it?

Yes it is, it's a good one. I wish that Sierra would make a 338 in the HPBT design. I've also used the 160 in my 7 Mashburn Super quite a bit as well.

Dober

Winchester brass, CCI BR2, 58gr of H4831, 140gr Accubond or Interlock, and I have always gotten over 2900fps 20" to 24" barrels. And I have always gotten MOA.

Thanks to all who posted there load info! It will be fun to try some of the loads in the old model 70.
Darryl

why would anyone want to use a hp bullet for anything but varmints.

The Sierra HPBT's in 257, 277, and 308 cals are great game bullets. Sierra will tell you that they are the "toughest" bullets that they make (stouter than their SPBT GameKings or Pro Hunters) and are generally about as accurate as their MatchKings.

Just 'cause a bullet has a hollow point, doesn't mean it was meant for varmints. The 257 120gr Hornady HP is tougher than their 117gr SPBT. Guess you could say that the X and TSX bullets have a HP, too.

The Sierra 160-gr 7mm HPBT Gameking is their toughest 7mm bullet.

57gr H4831, 150gr Speer HC, CCI #250

WN

might be important if we are talking about 7mm bullets, but i believe the poster wanted to know about .270 and .308 bullets. try again lee!-keith

hp bullets are ALL made to fragment quickly ,i don't care what caliber you are talkin about.

UH----- Barnes.....fragment? I think not.



55gr 4350 130 TTSX there is no reason for a 140/150 in the 270.

Those bullets look poisonous.

ohiohunter,

I mentioned the Sierra 7mm 160-gr HPBT being their toughest 7mm bullet because so many uninformed people believe that all hollowpoint bullets are fragile and "made to fragment".

Sierra's .277 140-gr HPBT is their toughest .270 bullet, according to Carroll Pilant, Media Relations Manager at Sierra. Sierra does not make a 150-gr .277 HPBT, but does make a 150-gr in SPBT.

I shoot the Hornady 150-gr SPBT and Remington 150-gr RN in my .270s.

you are going to have a tough time trying to convince me that the sierra 140 gr. HPBT Gameking bullet is tougher than a 130 gr. SPT Prohunter. -keith

I am not trying to convince you. I just conveyed what the expert at Sierra said. Call him.

The Hornady .257 120 gr. HP is another tough HP.

Hi, Rem brass (neck sized!), Rem 9 1/2M (large rifle magnum primers), 150g Nosler Partition, 59g H4831. This is a MAX load, work up from 56g a grain at a time. I get an honest 3000 fps out of my 22" barrel Rem 700 BDL and 1/2" 5 shot groups. Elk drop like they've been hit by lightning.



Chuck