27 Nosler

[Alibiiv]

I am curious to see the actual difference between .270Win and .270AI on similar loads and rifle configuration.

Well...I'm not trying to make a case for the .270 Ackley, but here goes for the .270 Winchester: .270 Winchester 150gr bullet 2900+-fps, .270 Ackley 150gr bullet 3100-3300fps +-, 27 Nosler, 150gr bullet 3200-3400fps +-, and.... .270 Winchester 50 pieces of brass $38 ($.75 ea) vs 27 Nosler 25 pieces of brass for $111.95 ($4.48 ea) and none in stock and can be built on any long action. I believe that FEENIX also gave you some ballistics for the heavier bullets, but those I am because I have no interest of shooting more than the 150s out of the .270AI. For me..... powder=weight=recoil as well as small bore and large amount of powder = significantly less barrel life. Perhaps a better question might be what the configuration is between the .270AI and the 27 Nosler? I put this out there due to your original question, good luck with your build.

 

[codyadams]

I'm not discrediting your experiences, but 3300 with a 150 in a 26" .270 ackley, is likely not going to be consistently reproduced in multiple different guns safely. In a .270 Sherman, a more improved .270ai, with a 25.5" barrel, with rl26, 170's were maxed out at 3000 fps using tough Peterson brass, the load ended up being 2925. 140's were showing good signs at 3275, with n565 and rl26, the load ended up being 3225. These same loads were max in a second .270 Sherman as well, but lower velocity as it has a 19" barrel, the 140 was 3030, though it hit 3100 before any pressure signs. A tight twist .270 ai is certainly a capable cartridge, we really like them, but it is not going to compare closely to a 27 nosler.

 

[Muddyboots]

I have a fast twist .270 Win on 700LA, that surprised heck out of me. Notice all RL26 loads.

156HH-RL26-3200 (topped out 3284)
170EOL -RL26- 3100 stopped
150ABLR - RL26-3200 stopped
150AB-RL26-3174-stopped
165ABLR-RL26-3065-stopped
160PART-RL26-3000-stopped
170BT-RL26-3030-stopped
175TGK-RL26-2936-stopped

Stopped means I had first sign of slight ejector mark.

This rifle build well documented last year in couple fun threads.

I will agree getting to 3300 even with the 156HH does not seem possible nor sustainable for brass life. My hunting load for the 156HH is at 3200 and 3X firings primer pockets still solid.

I have been working on load with 170EOL in 2900-2950 range with promise. Just need time.

This is my experience based solely on using a 700LA that provides 3.63 COAL plus freebore. Allows setting out long bullets for more efficiency IMO.

Is this a 27N? No, but the performance is pretty darn good with FAR less powder on relatively cheaper brass with std rifle primers.

YMMV

 

[Alibiiv]

I'm not discrediting your experiences, but 3300 with a 150 in a 26" .270 ackley, is likely not going to be consistently reproduced in multiple different guns safely. In a .270 Sherman, a more improved .270ai, with a 25.5" barrel, with rl26, 170's were maxed out at 3000 fps using tough Peterson brass, the load ended up being 2925. 140's were showing good signs at 3275, with n565 and rl26, the load ended up being 3225. These same loads were max in a second .270 Sherman as well, but lower velocity as it has a 19" barrel, the 140 was 3030, though it hit 3100 before any pressure signs. A tight twist .270 ai is certainly a capable cartridge, we really like them, but it is not going to compare closely to a 27 nosler.

I understand what you are saying here. When I was in the planning stages for this build I did look into the Sherman cartridges, however I could not get anyone to build a rifle on the Ruger 77 action using the Sherman cartridges. Also since this build Sherman has come a long way over the years. I also wrote that 3300fps was attainable, however the brass was showing signs of excessive pressure due to loosening primer pockets after a couple of reloads. And...I am using Winchester brass because that is what I had when I started to reload for this rifle. I figured that I was not going to jump into fire forming, annealing and everything else that goes along with reloading for a wildcat cartridge using Peterson/Lapua brass. We've pretty much settled on 3100fps with the 150s. But....I've got some 140gr ABLRs that my son has been bugging me to reload, and now I'm going to start playing with them next. COVID sort of put a damper on the range time, and in getting components like powder. I would like to get some Alliant Reloader 26 to see what I can get for load.

 

[JJeffress87]

My 270/300wm has cheap brass and is VERY close to the same capacity of the 27Nosler. I also have a 270 Sherman(the first one actually). The 270 Sherman is the 270AI with the shoulder moved ahead. All things 270 are good.

I've never had a wildcat cartridge before and am clueless when it come to necking things down and fireforming. The 270/300wm really interests me though because I have alot of quality 300wm brass already. So how hard is it to make the brass for a 270/300wm for a guy that's never done it before?

 

[SSgt G Cody]

My son is shooting a 6.5CM and I shoot a 6.5PRC, both with 121 Hammers. Have taken 4 elk and 9 big deer in past 2 years at 200-500yds, all one shot kills. His MV is about 3160, and mine is 3320fps. Accuracy with H4350 or H414 is great. Love Hammers.

 

[CogburnR]

I've never had a wildcat cartridge before and am clueless when it come to necking things down and fireforming. The 270/300wm really interests me though because I have alot of quality 300wm brass already. So how hard is it to make the brass for a 270/300wm for a guy that's never done it before?

I use a 300 win mag bushing die with an appropriate 270 bushing to resize. I set it to push the shoulder back .002-.004" then run the cases through a Innovative body die. I use a 300wm seater and have used 270wsm dies with a spacer(turns out a big nut works fine...lol).

It is very easy to make cases. Just neck them down using a 300wm bushing die(with the 270 bushing) set to push the shoulder back to fit your chamber. The reamer needs to have the correct neck size to do this but the reamer people know and have a no neck turn reamer or a tighter reamer for those who would like to turn the necks of their brass. Once set up it is take a 300wm case, resize, prime and charge case, seat bullet. No fire forming. 130's at 3500, 150's at 3300+, 170's at 3200+ in my 28" Pac-nor barrel.


In the pic: 26 Nosler 127LRX, 270-300wm 135CE, 270-300wm 150TTB, 270-300wm 170 EOL

 

[nralifer]

I am curious to see the actual difference between .270Win and .270AI on similar loads and rifle configuration.

Can't say but one thing's for sure, there is no replacement for displacement i.e. powder capacity Other guys on this forum would be more qualified to answer that, but I figure the performance should approximate the 6.8 Western but with much better brass availability. If that performance is possible, then coupled with a bullet with a G1BC in the 0.7 range that is able to be launched in the 3150-3200 range should be pretty nasty.

Well...I'm not trying to make a case for the .270 Ackley, but here goes for the .270 Winchester: .270 Winchester 150gr bullet 2900+-fps, .270 Ackley 150gr bullet 3100-3300fps +-, 27 Nosler, 150gr bullet 3200-3400fps +-, and.... .270 Winchester 50 pieces of brass $38 ($.75 ea) vs 27 Nosler 25 pieces of brass for $111.95 ($4.48 ea) and none in stock and can be built on any long action. I believe that FEENIX also gave you some ballistics for the heavier bullets, but those I am because I have no interest of shooting more than the 150s out of the .270AI. For me..... powder=weight=recoil as well as small bore and large amount of powder = significantly less barrel life. Perhaps a better question might be what the configuration is between the .270AI and the 27 Nosler? I put this out there due to your original question, good luck with your build.

I appreciate that. You made a good case for the 270AI because of the brass cost and availability. I already have about 300 270Win cases. So the AI makes sense to me. The 150 gr bullet we will make will have a higher BC than the 170 Berger so it will go faster also. Anyone with an 8 twist AI could shoot the 140 gr if they wish and still outdistance the 170. Will have to see about throat life but the long neck and lower powder capacity of the AI as compared to the Nosler may give the AI an advantage in throat life. The 100 or so fps advantage of the Nosler will not really be that noticeable in the first 1000 yds or so and only an advantage if it is shooting bullets of the same BC. Thank you for your info. It helps.

I've never had a wildcat cartridge before and am clueless when it come to necking things down and fireforming. The 270/300wm really interests me though because I have alot of quality 300wm brass already. So how hard is it to make the brass for a 270/300wm for a guy that's never done it before?

I use a 300 win mag bushing die with an appropriate 270 bushing to resize. I set it to push the shoulder back .002-.004" then run the cases through a Innovative body die. I use a 300wm seater and have used 270wsm dies with a spacer(turns out a big nut works fine...lol).

It is very easy to make cases. Just neck them down using a 300wm bushing die(with the 270 bushing) set to push the shoulder back to fit your chamber. The reamer needs to have the correct neck size to do this but the reamer people know and have a no neck turn reamer or a tighter reamer for those who would like to turn the necks of their brass. Once set up it is take a 300wm case, resize, prime and charge case, seat bullet. No fire forming. 130's at 3500, 150's at 3300+, 170's at 3200+ in my 28" Pac-nor barrel.


In the pic: 26 Nosler 127LRX, 270-300wm 135CE, 270-300wm 150TTB, 270-300wm 170 EOL

Good summary of your necking down technique. From your velocity projections, or actual measurements, would it be fair to expect a 140 gr bullet to go 3400 fps from your rifle?

 

[nralifer]

I use a 300 win mag bushing die with an appropriate 270 bushing to resize. I set it to push the shoulder back .002-.004" then run the cases through a Innovative body die. I use a 300wm seater and have used 270wsm dies with a spacer(turns out a big nut works fine...lol).

It is very easy to make cases. Just neck them down using a 300wm bushing die(with the 270 bushing) set to push the shoulder back to fit your chamber. The reamer needs to have the correct neck size to do this but the reamer people know and have a no neck turn reamer or a tighter reamer for those who would like to turn the necks of their brass. Once set up it is take a 300wm case, resize, prime and charge case, seat bullet. No fire forming. 130's at 3500, 150's at 3300+, 170's at 3200+ in my 28" Pac-nor barrel.


In the pic: 26 Nosler 127LRX, 270-300wm 135CE, 270-300wm 150TTB, 270-300wm 170 EOL

So anybody build one on 700LAM? Looking for any feedback for 170EOL, 156HH etc. Curious just how much more "bang for buck" versus crazy .270TH? I am thinking gotta be laser with either 170EOL or 156HH.

Sorry, but what is the 140 BD2? I've never heard of this bullet. Will it work in a 270 WSM?

It sure will if you have a 1:8 twist barrel. The bullet is made by Badlands Precision and is a copper hollow point bullet with an aluminum tip, both the bullet body, hollow point and aluminum tip are Swiss lathe turned.

Sorry, but what is the 140 BD2? I've never heard of this bullet. Will it work in a 270 WSM?

 

[CogburnR]

Can't say but one thing's for sure, there is no replacement for displacement i.e. powder capacity Other guys on this forum would be more qualified to answer that, but I figure the performance should approximate the 6.8 Western but with much better brass availability. If that performance is possible, then coupled with a bullet with a G1BC in the 0.7 range that is able to be launched in the 3150-3200 range should be pretty nasty.

I appreciate that. You made a good case for the 270AI because of the brass cost and availability. I already have about 300 270Win cases. So the AI makes sense to me. The 150 gr bullet we will make will have a higher BC than the 170 Berger so it will go faster also. Anyone with an 8 twist AI could shoot the 140 gr if they wish and still outdistance the 170. Will have to see about throat life but the long neck and lower powder capacity of the AI as compared to the Nosler may give the AI an advantage in throat life. The 100 or so fps advantage of the Nosler will not really be that noticeable in the first 1000 yds or so and only an advantage if it is shooting bullets of the same BC. Thank you for your info. It helps.


Good summary of your necking down technique. From your velocity projections, or actual measurements, would it be fair to expect a 140 gr bullet to go 3400 fps from your rifle?

I would say so, depends on the bullet but with RL33 and a 140AB? sure. My 150TTB is @3320fps with retumbo.

 

[Idaho Trecker]

The 150 gr bullet we will make will have a higher BC than the 170 Berger so it will go faster also. Anyone with an 8 twist AI could shoot the 140 gr if they wish and still outdistance the 170

I assume the upcoming 150 grain will require faster than an eight twist... since I already have three barrels that are eights... when will there be specs on this bullet?

 

[nralifer]

I assume the upcoming 150 grain will require faster than an eight twist... since I already have three barrels that are eights... when will there be specs on this bullet?

There is a good possibility that the new 150 will still be stabilized by an 8 twist

 

[JJeffress87]

I use a 300 win mag bushing die with an appropriate 270 bushing to resize. I set it to push the shoulder back .002-.004" then run the cases through a Innovative body die. I use a 300wm seater and have used 270wsm dies with a spacer(turns out a big nut works fine...lol).

It is very easy to make cases. Just neck them down using a 300wm bushing die(with the 270 bushing) set to push the shoulder back to fit your chamber. The reamer needs to have the correct neck size to do this but the reamer people know and have a no neck turn reamer or a tighter reamer for those who would like to turn the necks of their brass. Once set up it is take a 300wm case, resize, prime and charge case, seat bullet. No fire forming. 130's at 3500, 150's at 3300+, 170's at 3200+ in my 28" Pac-nor barrel.


In the pic: 26 Nosler 127LRX, 270-300wm 135CE, 270-300wm 150TTB, 270-300wm 170 EOL

Thank you!

 

[jacob_strass]

There is a good possibility that the new 150 will still be stabilized by an 8 twist

Really interested to hear about this bullet. Looking at building something .277 on a 7 twist and this bullet might be the ticket.