Thread: Starting from scratch

The 170 EOL probably won't be worth worring about unless you are going to go with something like a 270 Allen Mag. I doubt if you can push them fast enough in a 270 WSM to give you enough of an advantage over the 150's.
What velocity do you think you will get from them? When I had my 7mm mag, a 180gr only gave an inch or two windage advantage over the 162gr because of the lower velocity. It wasn't until I re-chambered to 7RUM that I could push the 180gr fast enough to get enough advantage.
If you are going to re-barrel and want to run those 170gr EOL then thonk about something like a 300 Norma Mag necked down to 270. You would need to switch to a ball powder as some of the big stick powders like 2225, 2218 can cause powder bridging problems.
Check out Kirby Allen's webpage he has quite a bit of info about his 270 Allen Mag.

Allen Magnum Wildcats scroll down to 270 Allen Magnum

Originally Posted by stug

The 170 EOL probably won't be worth worring about unless you are going to go with something like a 270 Allen Mag. I doubt if you can push them fast enough in a 270 WSM to give you enough of an advantage over the 150's.
What velocity do you think you will get from them? When I had my 7mm mag, a 180gr only gave an inch or two windage advantage over the 162gr because of the lower velocity. It wasn't until I re-chambered to 7RUM that I could push the 180gr fast enough to get enough advantage.
If you are going to re-barrel and want to run those 170gr EOL then thonk about something like a 300 Norma Mag necked down to 270. You would need to switch to a ball powder as some of the big stick powders like 2225, 2218 can cause powder bridging problems.
Check out Kirby Allen's webpage he has quite a bit of info about his 270 Allen Mag.

Allen Magnum Wildcats scroll down to 270 Allen Magnum

Current load, launched at 3080


170 launched at 2900


I see plenty of benefit...

Originally Posted by stug

The 170 EOL probably won't be worth worring about unless you are going to go with something like a 270 Allen Mag. I doubt if you can push them fast enough in a 270 WSM to give you enough of an advantage over the 150's.
What velocity do you think you will get from them? When I had my 7mm mag, a 180gr only gave an inch or two windage advantage over the 162gr because of the lower velocity. It wasn't until I re-chambered to 7RUM that I could push the 180gr fast enough to get enough advantage.
If you are going to re-barrel and want to run those 170gr EOL then thonk about something like a 300 Norma Mag necked down to 270. You would need to switch to a ball powder as some of the big stick powders like 2225, 2218 can cause powder bridging problems.
Check out Kirby Allen's webpage he has quite a bit of info about his 270 Allen Mag.

Allen Magnum Wildcats scroll down to 270 Allen Magnum

A 270-300 Norma now that sounds like a lot of fun and would be an interesting experience. Although after seeing and shooting a 7-300 Norma with accuracy issues my advice would be to buy the best barrel you can afford because I have learnt, these cartridges aren't the cartridges you want accuracy issues with.


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Do the Norma mag and 26/27/28/30 Nosler cartridges work on a normal (30-06 size) action and feed from a mag? Or need a Rum size action or similar?

Originally Posted by Ryan_Songhurst

Do the Norma mag and 26/27/28/30 Nosler cartridges work on a normal (30-06 size) action and feed from a mag? Or need a Rum size action or similar?

Yep a normal Rem LA is the same length, wouldn't build any of those on a Tikka, its too small in the action/thread tenon diameter