Home Forums Reloading Big Game Rifles 270 Win, Re 26, 150 NPT - who needs a 7 mag?

I agree and am a bit puzzled by the responses of some, although I did learn a few things about myself that I didn't know before this thread.

Mule Deer

My results pretty much as well.

From my testing a year and 9 months ago on a cold January day.




I feel very comfortable shooting 61.0 grains for 3,020 average in my 22" barrel 270 Win.

I wouldn't call the 270 as good as a 7 mag though. I shoot a Tikka SL in 7 mag and 145 LRX's at 3,300 mv.

Spot On and well said.
I'm a long time loader & chronographer (1981) for both 270 W & 7 RM.

IF 3050 fps was ALL I could get w/150s out of a 7 RM, 24" bll I would have given up a long time ago.

I'm NOT knocking RL 26 but the 270 does not equal the 7--- at least not yet and I doubt it ever will.

Just try getting 3100+ with 160 gr bullets from a 270 W.


Jerry

ps - I'm with SU here. I run 139HBTSP at 3300 very easy in the 7 mag.

And proper reference Ammo to calibrate it !

The problem with hot-rodding a .270 is that the book loads are based upon the 65Kpsi SAAMI standard.

Once you're Over that standard you are Over!

MD has stated here several times that traditional pressure signs don't show up until 70Kpsi +

Is your receiver Trued, and the Lugs lapped ?

Please tread carefully

Let's try this calmly.

Load data:
270 win, 150 NPT, 3040 ft/sec, BC 0.465
7RM, 150 NPT, 3250, BC 0.456
7RM, 160 NPT, 3000, BC 0.475

40 degrees, 5000 ft elev

First run, zero is 250 yds for all

270/150 2.4. 2.0. -3.3. -13.8. -30.8
7mm/150 1.9. 1.7. -2.8. -12.1. -26.6
7mm/160. 2.5. 2.0. -3.3. -14.1. -31.5

A grand total of 4.2 inches flatter for the 7mm/150 combo. I'd submit that in 30+ years of shooting a 7RM, I never got 3250 with a 150. Not even in my 7 WSM in recent years. Drop velocity down to 3200 and the difference is 3.2 inches.

In all fairness, I ran the numbers using a max rise above line of sight of 3.2 inches. Why I use 3.2 I don't know except I've done that for a long time.

Same data as previous.

270/150. 2.7. 2.6. -2.3. -12.5. -29.2
7mm/150. 2.5. 2.8. -1.2. -9.8. -23.9
7mm/160. 2.7. 2.4. -2.7. -13.3. -30.4

Again assuming the 7mm can get 3250 with a 150 gr, a total difference of 5.3 inches at 500 yards. With a more realistic 3200, the difference is 4.0 inches. I ran 150s at 3150 in my 7mms. I've generally considered the 7RM as 3200 with 140s, 3100 with 150s, and 3000 with 160s. Most data sources back that up, especially given the SAAMI standard. I find it interesting most folks run the 7RM above SAAMI and don't think twice but take offense at running Re26 at mfr suggestions. We'll leave that a!one.

Bottom line, the 4 inch advantage is lost on me.

And before someone starts with my use of Noslers bullets, it's my bullet of choice - feel free to use what you want.

As to the recoil sensation, to each his own. I have a surgically repaired shoulder. Recoil differences between 25 and 30 ft/lbs are noticeable to me.

I promise to never again have any appearance of goring the sacred cow.

If it's going where you want, as fast as you want, with the bullet you want, it's a winner...

YEP!
When it comes to the 270 W, I was never in the 'closet'!!

JOC famously said, " The 270 Winchester, Every Man's Beltless Magnum "

AFAIC, the 270 is hard to beat and FEW equal it.

At the same time, Real Magnums are just that.


Jerry

Is that load/bullet good for coyotes?

I'd say barely. If you ever seen the movie "Bernie" - it would make a good armadillo gun.

The term "Real Magnums" is kind of funny... as we know, the term "Magnum" was a marketing term coined by Holland and Holland. Of course it comes from the world of wine, but we're talking brass and powder, not glass and Pinot.

We know what it means to us today, ie, a case of higher capacity than "normal" cartridges, but using "real" and "magnum" in the same sentence is a bit of an oxymoron.

Add to the fact the belt on "magnums" is an unnecessary marketing appendage on most post Holland cartridges, and "real" and "magnum" start sounding like Dolly Parton's "real boobs."

Just a Sunday morning rabbit trail. Carry on...

Just came back from range.

T3 Superlight

150 Partitions
60.5gr RL26
CCI BR2 primers
Nosler brass, 1x fired and neck sized.
3.300" COAL

2968 fps
2967 fps
2978 fps

Should add that with 7mm RM and 175 Partitions, 65.0gr RL26 I had a 3 shot average of 2904 fps. Two rifles shot one after the other.

Practically identical dope and the only difference is +/- 300 FPE.

Arac looks good could possibly go up slightly on the 7RM or try a hotter primer. But that's plenty of velocity for each.

You can easily achieve 3,050 fps with your 7mm rem mag and 160's with RL25. That 270 load looks quite promising though..

I am sure you are right, but I like the 175's.

Sorry about that. The 175's at the speed you posted has got to be a sledge hammer too. Carry on. Sounds like you got some good loads there. If I don't sell my 270 too soon, I'll try some of that RL26 powder in her..

So amid all this talk of RL26 speed (I believe it's real with 150's and absolutely within SAAMI limits), what about accuracy relative to other powders? Is anyone finding same or better accuracy than their favored, albeit slower, powders?

In my rifle, a recent Model 70 Featherweight, accuracy is very similar to H4831SC, IMR7977 and RL-22, the powders that performed best with 150's prior to RL-26.

H1000 was a tiny bit better in the accuracy department at ~ 2950 IIRC. H4831 and Re26 were about the same accuracy ~ 1". The ES on Re26 was pretty low.

OK tried RL 26 in my 270 Win LH Custom Rem 700 with a 22 " Mtn contour .

150 Nosler LR Accubond RP Cases, CCI 200 primers, 60 GR RL 26 3039 FPS, 60.5 3065 FPS, 60.8 3086 FPS Best accuracy was 3 shots 1.4 "

150 Gr Nosler Part. Seconds with crimp groove.
60 GR RP 26 3054 FPS, 60.5 3065 FPS, 61 3085 FPS.
Best Accuracy was 60 GR RL 26 3 Shots .30 " at 100 yards!

Pretty impressed primers looked good 22 " barrel 270 Win 3050 FPS with 150 gr and accurate !

Tried RL 26 in my Ruger Hawkeye 1 in 9 twist 243 Win 22 " barrel

95 GR Nosler BT WW case CCI 200 primer 47.5 Gr 3186 FPS around 2 " 48 GR same speed .90 " group

105 Gr Horn A Max 46 GR 2952 FPS 46.5 GR 2970 47 gr 3010 FPS around 2 " groups.

Need some data for 280 Remington want to try it with 150 gr ?