Help with upcoming .277 build

[Bghunter338]

What's the coal with a 150 sbd2? I have a factory 700 7mag waiting to be something new. Wondering if the 7 Sherman mag would fit.

It should, let me measure it.

 

[Bghunter338]

 

[Hand Skills]

It's just the brass is the only issue. That would be my top choice.

Just a suggestion;

Find some ADG 300WSM brass,

Run through 270WSM die to neck down

Load and shoot

 

[codyadams]

For a LA, 27 Nosler with a 7 twist. shoot a 150 SBD2 @ 3200 fps.

27 nosler would do way more than 3200 with the 150. It will run a 170 Berger that fast without issue. The 150 would be 3400+. The 140 badlands with a .333 G7 would be 3500 range, maybe more.

Compared to the 170 Berger with a .339 G7, both the 140 and 150 badlands completely outpace it ballistically. We were running the 170 Berger at 2935 from a 25" .270 Sherman with h1000, rl26 only got us to 2970 fps safely, but without accuracy. We currently run the 140 badlands at 3240 with N565 from the same gun, loads were well under pressure and hovering at or under half MOA on ladder tests during development. Over 300 fps faster, with essential the same bc. Ballistically, there is zero reason to run the Berger by comparison. The price could turn you off though.

From pronghorn at 100 yards, to bull elk at 700, the 140 .277 badlands has performed well. Well over 20 animals taken with that bullet, including 8 elk, never recovered a bullet, and trauma has been good. Just make sure you have the twist for them.

As far as cartridge selection, Peterson and ADG brass is as good as lapua, and Peterson makes .270 win if your not interested in having a speed demon, 140 around 2900 or better. I hate to say it, but a 270 creed would be a nice small cartridge, and would shoot a bullet like the 140 badlands around 2750-2800 without any trouble at all. A properly throated 27x284 would also be an awesome cartridge, essentially the same as a 6.5 prc capacity, and has all the good brass you want that isn't scooped up by everyone and their brother. As the 270 win, 140 around 2900 or better easily. Another good one would be a 27-7mm mag, again, awesome ADG brass is plentiful and available, and a step up in performance, the 140 likely around 3100-3200 without a fuss. Next up the chain is the 27 nosler, but your getting a hot rod at that point. All these would require a single pass through a die at most. If you want a wildcat and more brass work on some (a few have formed brass available), the Sherman's are a good option with ADG or Peterson brass available for any of the chamberings.

Good luck.

 

[Lenny Foffa]

I shoot three 270 Wins, one in a fast twist 28 inch heavy Hart barrel with a ling throat, and an 8 twist What is a150 grn SBD2??? I'd like to try them. A fast Twist, Long throat WSM could be the answer.

 

[Brad Quarnberg]

I've always wanted to add a .277 build to the line up. I know they aren't as popular as a 6.5, 7, and 30's but I have pretty much everything already covered. This is more because I want one!

Anyways I'm not one for huge speed demon so I'm thinking maybe the 270/6.5 prc for the purpose of Lapua brass or holding off until more brass options come out in the 7 prc and necking it down. Hoping to run the 170's, and build a real lightweight multipurpose hunting rifle from whitetail to moose. Just because I know it's coming, I already have a 300 Norma, 7 mag so the moose part is generally covered

Specs can change but thoughts are;

- falkor lw7 long action
- carbon barrel (hoping ibi drops there's soon)
- manners lrh
- Hawkins bottom metal
- tt diamond

I have a 270 WSM (bought one when they first came out and before FN bought them) and have never had problems with the Winchester brass. Nosler and Hornady both make 270 WSM brass, and you can get Federal Premium ammo, shoot it, and use the nickel platted brass which is much better. If you are using the gun for competition, I can understand the desire for Lapua brass. That said, I'm on my fourth reload on some of the Winchester brass I have with no signs of case separation, and I have had no issues to date.
I'd recommend (like already mentioned) put a fast twist 270 WSM barrel on your long action and get to it: save the headache of necking up or down, and the long action gives you options for seating bullets out if you want to throat your barrel over SAMMI spec. The only thing you'd need to do is make sure the mag is set up for WSM.
I love my 270 WSM and have taken a lot of game with it over the years. That said, there have been a lot of good ideas/suggestions in the above posts: good luck and make sure to let us know what you decide.

 

[tribb]

I have a 270 WSM (bought one when they first came out and before FN bought them) and have never had problems with the Winchester brass. Nosler and Hornady both make 270 WSM brass, and you can get Federal Premium ammo, shoot it, and use the nickel platted brass which is much better. If you are using the gun for competition, I can understand the desire for Lapua brass. That said, I'm on my fourth reload on some of the Winchester brass I have with no signs of case separation, and I have had no issues to date.
I'd recommend (like already mentioned) put a fast twist 270 WSM barrel on your long action and get to it: save the headache of necking up or down, and the long action gives you options for seating bullets out if you want to throat your barrel over SAMMI spec. The only thing you'd need to do is make sure the mag is set up for WSM.
I love my 270 WSM and have taken a lot of game with it over the years. That said, there have been a lot of good ideas/suggestions in the above posts: good luck and make sure to let us know

what you decide.

Good luck with your project sir . Enjoy the process . I have a.brand new 277 2B bartlien 5r 29" 8 twist stainless barrel posted on here that should be perfect for your project. Let me know.thanks Tribb

 

[Bghunter338]

I shoot three 270 Wins, one in a fast twist 28 inch heavy Hart barrel with a ling throat, and an 8 twist What is a150 grn SBD2??? I'd like to try them. A fast Twist, Long throat WSM could be the answer.

.277 150gr Super Bulldozer 2 - Badlands precision, LLC

Length: 1.635″ BC (G1): 0.710 BC (G7): 0.350 Twist: 1:8.0″ Price: 50/BOX

badlandsprecision.com

 

[Lenny Foffa]

Just throwing this in for sake of conversation, in but I also shoot a .270 Weatherby Mag, factory #2 ,26-inch barrel, with a 10 twist. Shoots 150 grn ABLR very well at 1000 yards. Has taken a small elk and two mule deer and one antelope. If that rifle had a new Bartlein or Krieger barrel with an 8 twist, that would open up lots of new opportunities to shoot heavier bullets with higher BC's.

 

[SSG Graybush]

I have a 270 WSM (bought one when they first came out and before FN bought them) and have never had problems with the Winchester brass. Nosler and Hornady both make 270 WSM brass, and you can get Federal Premium ammo, shoot it, and use the nickel platted brass which is much better. If you are using the gun for competition, I can understand the desire for Lapua brass. That said, I'm on my fourth reload on some of the Winchester brass I have with no signs of case separation, and I have had no issues to date.
I'd recommend (like already mentioned) put a fast twist 270 WSM barrel on your long action and get to it: save the headache of necking up or down, and the long action gives you options for seating bullets out if you want to throat your barrel over SAMMI spec. The only thing you'd need to do is make sure the mag is set up for WSM.
I love my 270 WSM and have taken a lot of game with it over the years. That said, there have been a lot of good ideas/suggestions in the above posts: good luck and make sure to let us know what you decide.

Norma makes 270 wsm brass as well.

 

[Jim’s Hunt]

A fast twist .270WSM in your long action will give you what you seek without all the drama or cost of custom dies etc..

My 270WSM 7.5 twist 175gr Sierra TGK at 3050fps with MagPro and Fed 215m primers

 

[matt_3479]

I'm aware adg makes 300 wsm brass which is a big plus for sure but I've never used adg brass. I pretty much only use alpha and Lapua which is the reason I was looking at the 6.5 prc which would be under the wsm obviously but the 7prc would match it and possibly have better feeding then the wsm which sometimes can be tougher to feed from my understanding. the 7 prc is obviously a hold back due to brass but the way the prc's ran through the market you'd almost have to expect better brass to come very shortly!

I don't know where I could get those bullets in Canada so that's why the thoughts were for the 170 Berger

 

[Bghunter338]

@nralifer are your bullets available in Canada?

 

[MagnumManiac]

I went through this myself, I've always owned a 270 Winchester and my Dad liked it so much I gave it to him for his birthday. This was before there were PRC's, WSM's or SAUM's.
So, I built a switch barrel on a Wiinchester Model 70 Classic Stainless in 264WM & 270 Weatherby…best thing I ever did. Has a 9" twist and the velocity is so fast that I have to choose my bullets carefully, only using stoutly constructed pills. It loves 150g Partitions and 140g Accubond, so happy with that, and it shoots FLAT.
I am very happy with my choice.

Cheers.