13 September 2003, 02:02
<'Trapper'>O'Connor's loads for 7x57
In reading all the stories about Eleanor O'Connor and her 7x57, I keep coming up with the 'pet' load that Jack put together for her, using a Hornady 165gr bullet pushed to I believe 2660fps. My question is what the heck did he use to acheive this?? I just can't find a powder that will do this, given the case size and what it will hold - run out of room to stuff anymore in.
Anyone have any info or pet loads they would care to share? Have several 7x57 to work with, latest being a Mod 77 Ruger that I am anxious to get out and on paper.
Thanks for the response,
13 September 2003, 02:27
bobwAny of these should put you close, 760,h-4831,h414.
13 September 2003, 02:34
POP http://www.loadyourown.comhttp://www.reloadersnest.com/http://www.loadswap.com/login.phpThese might help. BTW hornady no longer makes a 165, they do make a 154, 162, 175.
![[Big Grin]](images/icons/grin.gif)
13 September 2003, 03:20
R FlowersWell, now you have my feeble brain trying to remember, but I thought Eleanor O'Connor shot most of her stuff with a 7 X 57 using Sierra 160 grain bullets.
I will have to get out some of my O'Connor books, but it seems to me that she shot a 160 Sierra at about 2650 fps. The load he used was with H 4831 powder, but I do not remember how much.
I cannot remember Hornady ever making 165 grain 7mm bullets.
R F
13 September 2003, 04:38
Bob257He used to brag about the 139 Federal loads. I have all but two of his books so I'll try to find an answer.
Bob257
13 September 2003, 06:18
LE270You have to remember, when looking at any loads O'Connor developed using H 4831, that he was using the old surplus H 4831, which was slower-burning than today's H 4831. That old surplus stuff is no longer available, except to those fortunate shooters who laid in a stash of it and still have some left. (Lucky bastards!)
So if you use O'Connor's data with present-day H 4831 you will likely get a load that is dangerously over-pressure.
13 September 2003, 14:51
craigsterAckleys Handbook (Vol 1) shows 47gr 4350 and 160's @ 2665 fps, and 49gr 4350 @2750 fps. Sierra's MAX (Again MAX!) load for the same is 45.7gr @2600. BIG difference in load data, I'd be carefull if I were you. Ackley's data was published in 1962. Sierra data is from their 50th anniversary edition.
13 September 2003, 15:04
TCLouisLE270
I still have several pounds of the 60s milsurp 4831 (that i purchased in the 60s). Kept in a Coleman fuel can it will open easily in case of some accidental application of an external heat source. I think it proabably protects the contents much better than modern plastic jugs also!
We went together and bought a barrel of the stuff.
Came out to the ridiculous price of 50 cents a pound I believe.
LouisB
I was unhappy at the time that it would NOT burn with heavy bullets in my 219 Donaldson Wasp.
LouisB
[ 09-14-2003, 16:11: Message edited by: TCLouis ]14 September 2003, 13:41
<the-moleman>Trapper,
Eleanor's load is given in the 1974 Gun Digest in an article by Jack entitled
Forty Years with the Little 7mm . She used "various 160-gr. bullets pushed by 52 grains of 4831. Velocity in the 22-inch barrel of her rifle is 2,660." As mentioned previously this was surplus 4831, not the currently manufactured H4831 or IMR4831.
Kurt