27 nosler vs 270 wby

Trm82

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So I just flipped thru a rifle shooter magazine where they tested the 27 nosler and will say the 27 has nothing on my 270 wby and uses a lot more powder.
I will take my 270 wby any day over a 27.
I snapped a couple pics of there loads.
My 270 wby does 3390 FPS with
RL26 and 140 classic hunter and 3475 FPS with 129 lrx.
My gun does 3325 FPS with150 vld and I tried the 170 Berger but don’t have the twist and got 3050 FPS with those.
 

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Nomosendero

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Yea, I think the 270 Wea. is a sleeper! We all saw the long thread on the 270 recently, it would be great with a fast twist but for me I would rather have a fast 6.5 but the .270 Wea. has some fast and good hunting factory ammo to fall back on, a good deal faster than a 270 and with a 1.75-1-8 twist barrel, you could work up mean loads with the 170 Berger or 165 Long Range Accubond. It is here to stay while the 270 Nosler may not be. I am one of those older guys that don't fall apart when I see a belted case.
 

Draftmule

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I would not bet against the 27 Nosler or the .277 Wby. The Noslers 1800 fps velocity @ 1000 yards is huge. With that said I most certainly agree the .277 Wby is a true sleeper. One only has to study a standard .277 Wby Balistic chart and imagine even modest hotter performance with the new powders. But also because it has helped stack decades of 500 plus yard kills with a unique comfortable recoil.
 

Trm82

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I would not bet against the 27 Nosler or the .277 Wby. The Noslers 1800 fps velocity @ 1000 yards is huge. With that said I most certainly agree the .277 Wby is a true sleeper. One only has to study a standard .277 Wby Balistic chart and imagine even modest hotter performance with the new powders. But also because it has helped stack decades of 500 plus yard kills with a unique comfortable recoil.
My load is 1933 FPS at 1000 yards and only drops -185” so it beats what they are saying
The 27 does by quite a bit.
 

Draftmule

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TRM ~
The Nosler [email protected] is with a 150 grain bullet not a 140 bullet. Yet your RL 26 with 140s is very impressive! Can your share more details of that .277 wby / RL 26 load? I am loading 145 Hammers + V 560 in one of my .277 Wbys, hits hard, very accurate but have not chronographed.
 
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Trm82

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TRM ~
The Nosler [email protected] is with a 150 grain bullet not a 140 bullet. Yet your RL 26 with 140s is very impressive! Can your share more details of that .277 wby / RL 26 load? I am loading 145 Hammers + RL 16 in one of my .277 Wbys, hits hard, very accurate but have not chronographed.
My gun is a Mcwhorter which has a hart 26” bbl and a stiller action , Mcwhorter gave me the load that they made for this gun which was with the 150 vld and 73 gr of RL 26 but I chose to go to the 140 classic hunter for the higher BC than the 150. I load 74 gr of RL26 with the 140’s and it shoots less than 1/2 moa at 825 yards.
 
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highdrum

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The 27 nosler is the smallest of the whole nosler magnum line. It has bout 10gr more than the wby. If you read the coal is 3.35. Are you loading your 350 thousandths freebore wby to that same length? Take a 27N with say 225 or 250 freebore, loaded to 3.5" + length and it'll out run the wby, as it should with 14% more powder space. You need to compare everything apples to apples. The 270 weatherby is a great case, it was the largest 27 cal factory option till the Nosler came along. Just shows that once you reach a certain capacity to bore ratio, more powder produces minimal returns.
 

Timnterra

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I was toying with the idea of building a 270 Weatherby a couple years ago and decided to go old school 270 win instead because my barrel twist was 1-10 and I didn’t see a need for the added case capacity to only shoot 150gr bullets. I think the Weatherby is a cool cartridge but it’s not going to beat a 27 Nosler when compared evenly. It’s not really fair to compare hand loads with factory ammo. The factory loads will always be at a disadvantage to similar non factory loaded ammo. Factory loads have to be safe in every gun so they are not loaded to maximize velocity. Factory loads have to feed in the shortest mag box so the bullets are always crammed into the case. The truth is that the Nosler has greater capability than the Weatherby because it holds more powder.
 

Quintus

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I guess it' bullet selection and more recently the belt, but I have always waited, and wondered why the 270Wby never caught fire. True the new Nosler will outrun it, but at what cost? Strange to say the Weatherby gives you less recoil and muzzle blast with better barrel life. All of the Wby cases have that nice long neck and sourced by NORMA they are always good quality. Re-barreled with a fast twist and paired with something like the Berger 170 should make the Roy a great 1000 yard gun, but a 10 twist and 140 Accubonds have made it a 600 yard death ray since they came out with the Accubond. Roys cases have held up pretty well over time and actually with the advancements in powder chemistry they are harder to beat than ever.
 

codyadams

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Nothing against anything your saying, but a lot of the information is somewhat subjective, and lacks a lot of relevance. Your comparing their loads that they were comfortable listing in a public magazine, against your (I am assuming, correct me if I am wrong please) hand loads that you worked up to likely near maximum safe/accurate loads in your particular rifle, just like the rest of us do. Neither of these loads are pressure tested, or even worked up to the same initial signs of over-pressure (then backed off) such as ejector mark, increased bolt lift, etc., to compare apples to apples, so for instance, you may be running 68,000 psi, and their loads may be at 63,000 psi, or they may be able to add 2 grains before they get an ejector mark, and you may be .5 grain away from the same pressure sign, or vice-versa, who knows?

Not saying anything against the wby, nosler, or anything else, just that this is a somewhat arbitrary comparison, and should be taken with a grain of salt. I do however believe that there absolutely is a point of diminishing returns, for instance I am running a 156 out of a .264 win mag at 3200-3225 range before I find any pressure signs, and around 3175 fps consistently with no signs or wear on the brass. The real world numbers I see from 26 noslers and 6.5-300 wby's that are worked up to pressure then backed down for a safety margin are not very impressive in comparison when considering they are using nearly 20 grains more powder at times, and may get 50-100 fps more generally on the loads they end up sticking with. But when I compare, I compare my results, which won't be found in any reloading manual or magazine, to others people's actual results as well, where they began to see pressure signs, and so on.

In other words, I have no doubt that a 27 nosler will outrun a 270 wby when a fair comparison is drawn up, but it is encroaching on a point of diminishing returns, and the cost of shortened barrel life, extra cost of powder, and so on, may be more than some want to pay. The same could be said about nearly any other overbore cartridge vs the next larger overbore cartridge.
 

Spoonbill

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So I just flipped thru a rifle shooter magazine where they tested the 27 nosler and will say the 27 has nothing on my 270 wby and uses a lot more powder.
I will take my 270 wby any day over a 27.
I snapped a couple pics of there loads.
My 270 wby does 3390 FPS with
RL26 and 140 classic hunter and 3475 FPS with 129 lrx.
My gun does 3325 FPS with150 vld and I tried the 170 Berger but don’t have the twist and got 3050 FPS with those.
I am in total Agreement. My Old Kleingunther K-15 in 270 Wby is the most accurate rifle I own! Care to share more details on your load data??
 

Draftmule

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What a great example of a quality thread from helpful LRH members!
I have a high end action to arrive end of October; long time ago narrowed my choices to 300 Wsm, 27 Nosler or 270 Wby for open country Mule Deer only rifle. Mainly because I have thousands of .30 cal and .277. bullets.
Thank you, this is great!
 
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