257 STW

18 March 2007, 19:51

dsmit50

I had an article from shooting times on this but I can't find it. Hope this helps.
http://www.reloadersnest.com/forum/topic.asp?TOPIC_ID=4762

19 March 2007, 03:59

Wyo Elk

Dsmit50- Thanks-- I will check that site.

19 March 2007, 04:02

dsmit50

Also check out http://www.reloadersnest.com/frontpage.asp?CaliberID=239

20 March 2007, 07:21

dsmit50

I found the article:
75 gr horn HP rl22 85 grs 4036 fps
85 b tip rl22 83 gr 3914 fps
100 part h1000 86 gr 3709 fps
115 b tip aa8700 92 gr 3546 fps
117 sierra sbt aa8700 89 gr 3507 fps
120 part h1000 82 gr 3466 fps
These are MAX!! 26" barrel

20 March 2007, 08:10

Wyo Elk

Dsmit50-- Thanks again!!!

24 March 2007, 18:18

jro45

quote:
Originally posted by jro45:
You can get all the load dada you want at this sight: Steve's Reloading Dada Pages

25 March 2007, 02:23

Blair338/378

You blokes should try the 257 Ultra Mag

The muzzle blast will keep you nice and warm on a cold day and your barrel maker will LOVE you

25 March 2007, 11:05

mr.big

quote:
Originally posted by dsmit50:
I found the article:
75 gr horn HP rl22 85 grs 4036 fps
85 b tip rl22 83 gr 3914 fps
100 part h1000 86 gr 3709 fps
115 b tip aa8700 92 gr 3546 fps
117 sierra sbt aa8700 89 gr 3507 fps
120 part h1000 82 gr 3466 fps
These are MAX!! 26" barrel

around 30 grs more powder than a 25-06 for 300 extra fps,,thats 50% more powder for 10-12% more velocity..

25 March 2007, 12:10

Blair338/378

More efficent than the 257 RUM!!!

25 March 2007, 17:58

Wyo Elk

Blair-- How do you like the 257 Ultra Mag, compared to your old 257 STW? -Velocity?

25 March 2007, 19:19

Strut10

quote:
Originally posted by mr.big:
quote:
Originally posted by dsmit50:
I found the article:
75 gr horn HP rl22 85 grs 4036 fps
85 b tip rl22 83 gr 3914 fps
100 part h1000 86 gr 3709 fps
115 b tip aa8700 92 gr 3546 fps
117 sierra sbt aa8700 89 gr 3507 fps
120 part h1000 82 gr 3466 fps
These are MAX!! 26" barrel

around 30 grs more powder than a 25-06 for 300 extra fps,,thats 50% more powder for 10-12% more velocity..

Bigger, faster, better, more!!! That's the American way, I guess.

26 March 2007, 10:06

Blair338/378

quote:
Originally posted by Wyo Elk:
Blair-- How do you like the 257 Ultra Mag, compared to your old 257 STW? -Velocity?

More accurate over a wider range of bullets. Purely a stunt gun in reality

27 March 2007, 04:48

hjl

Hi Blair,
Who did you get to build a 257 rum in Australia?
I was wondering who has the reamer?
What length barrel do you have?
What twist did you use?
What velocity can you get with 85 gns 100 gns etc?
Do you just neck 7mm rum brass down for the 257 rum ?
Thanks for your reply.
Regards.
hjl

27 March 2007, 05:24

Idaho Sharpshooter

short barrel life? Maybe, but the fun factor is waaaaaaaaaaaaaay up there. I had a guy tell me my 257 Banshee (6.5x68S necked down to 257 and blown out) would only get half the barrel life of his 25-06. I sez "twenty trips up the high country shooting Rockchucks and $400 for a new barrel VS twenty awesome trips using $40 worth of gas per. If I wanted efficiency I'd sell the Dodge Diesel and buy a Yugo...and take up archery so I could shoot the same arrow a thousand times...".

Rich
DRSS

27 March 2007, 10:39

Blair338/378

quote:
Originally posted by hjl:
Hi Blair,
Who did you get to build a 257 rum in Australia?
I was wondering who has the reamer?
What length barrel do you have?
What twist did you use?
What velocity can you get with 85 gns 100 gns etc?
Do you just neck 7mm rum brass down for the 257 rum ?
Thanks for your reply.
Regards.
hjl

hjl,

Robert Tobler has the reamer and did the work.
27 inch.
1:10
Don't know what the velocity was as my Oehler 35 up and died on me.

Just a neck down, though I have 6.5RUM dies and you could take that extra step...............

28 March 2007, 04:06

hjl

Blair,
Thank you for the reply.
Good to hear there is a 257 rum reamer in Australia. What brand of reloading dies did you get ? How much are they?
I have a 7mm STW that I will rebarrel 'one day'.
The 257 rum sounds like my kind of thing. I got my 7mm STW when it was still a wildcat.
It's a pity your chrono died. I would love to know what it can do. What powder and bullets are you using? What accuracy are you getting with this combo?
Thank you for your help.
Regards.
hjl

28 March 2007, 04:10

hjl

quote:
Originally posted by Idaho Sharpshooter:
short barrel life? Maybe, but the fun factor is waaaaaaaaaaaaaay up there. I had a guy tell me my 257 Banshee (6.5x68S necked down to 257 and blown out) would only get half the barrel life of his 25-06. I sez "twenty trips up the high country shooting Rockchucks and $400 for a new barrel VS twenty awesome trips using $40 worth of gas per. If I wanted efficiency I'd sell the Dodge Diese
l and buy a Yugo...and take up archery so I could shoot the same arrow a thousand times...".

Rich
DRSS

I think you are on the right track. Maybe we are both just different thinkers.
regards.
hjl

28 March 2007, 13:20

Blair338/378

hjl

It shot well with RE 25 and the 85 grain BT's.

With 115's I used 2225, some old H870 and 2218.

RCBS dies.

If you or Wyo Elk would like a set of RCBS 257 STW dies, PM me, with your address and I'll send them to you...........

28 March 2007, 16:08

hjl

Blair,
PM sent.
Regards.
hjl

28 March 2007, 17:21

Wyo Elk

Blair-- PM sent-- Thanks

28 March 2007, 18:05

El Deguello

quote:
Originally posted by Wyo Elk:
Looking for loads and any info on the 257 STW?

If any cartridges are still "over bore capacity", even with today's very slow powders, this has to be one of them. I suppose if one has one, however, loading data is needed.