GS 265gr 9.3x74R loads?

14 June 2009, 15:24

SGraves155

Roscoe has volunteered to load up some GS FPS 265 solids for my Chapuis double.
Has anyone used this particular bullet in their double before? We've got 4831 and 4350 for powder and Winchester Magnum primers. I think Gerard suggests additional regulation by seating depth after appropriate velocity is reached, but I'm a little vague on that.

15 June 2009, 12:44

mouse93

Steve my guess is that 4831 and 4350 would be too slow. My loads are R903 that is a tad faster burning than 4895 that would be my pick for 265FN's.

With R903 I got:

- 58 gr - 2247 fps
- 60 gr - 2333 fps
- 62 gr - 2427 fps

On all counts I'd listen to Gerard - he knows what he is talking about - seating depth worked for me.

15 June 2009, 18:11

Peter

Steve, where are you getting the GS Custom solids?
Peter.

15 June 2009, 18:33

mstarling

Don't know what your rifle was regulated for ... mine likes IMR 4831 with 286 gr Noslers and Woodleigh solids.

It does NOT like faster powders very well.

15 June 2009, 19:23

ROSCOE

Steve had a AA4350 and I experimented with Several loads using this powder. I am writing this from memory since I don’t have the data in front of me so I have rounded the velocities a bit.

63 grains 2250 FPS Cross
64 grains 2310 FPS Cross
65 grains 2390 FPS Cross
66 grains 2440 FPS Cross

I was shooting at 50 yards with a scope. The 63 grain loads were close to 3” apart at this distance. Increasing powder brought the loads together but at 66 Grains they still crossed about 1.5”. All loads printed fine on the horizontal axis. I did not experiment with seating depth. 66 grains gave me the velocity that I expected and there were no signs of pressure however I did not want to go any higher. I think Mouse may be correct that a little faster powder may work better.

I know Gerard recommends that his bullets be seated close to the lands. In my experience with other bullets in this rifle, a long seating depth causes pressure issues and poor accuracy…obviously these may work a little different. If Steve has the time and Patience I may keep playing around with this and try to get the loads to regulate properly. To be honest I think they would work fine for elephant even though they are crossing a bit. I did not shoot them at Jumbo range(25 yards) however I expect they may shoot close to POA at that distance.

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15 June 2009, 19:27

ROSCOE

quote:
Originally posted by mstarling:
Don't know what your rifle was regulated for ... mine likes IMR 4831 with 286 gr Noslers and Woodleigh solids.

It does NOT like faster powders very well.

Mike,
I was shooting my Chapuis which was regulated with the 286 grain Norma Oryx. It also shoots very well with H4831 and 286 grain bullets. I did not try that powder with the lighter 265 grain bullets because I ran out of case capacity. 63 grains of 4350 was a compressed load with this bullet.

19 June 2009, 05:08

SGraves155

quote:
Originally posted by Peter:
Steve, where are you getting the GS Custom solids?
Peter.

Peter, I got mine from their mail-order at their web-site. took a while to get here from SA. I think one of our members in Alaska has the US distributorship for them now--he posts under the screen-name Yukon Delta.

Roscoe,
I shot some of the loads this evening, and at 30 yds they cross less than an inch. Should be perfect.
Thanks a bunch.

19 June 2009, 05:48

Peter

Thanks Steve, I too bought mine directly from GS several years ago, so I have a small supply of 375 and 416 FNs and HVs. Unfortunatley I did not have my 9.3x74R back then. I will send Yukon Delta a PM and see if he has any solids, I assume they are FN's?
Thanks, Peter.

19 June 2009, 06:44

Mike Brooks

Here's their website.

http://www.gsgroup.co.za/11dealers.html

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19 June 2009, 06:49

N E 450 No2

quote:
Originally posted by SGraves155:
Roscoe has volunteered to load up some GS FPS 265 solids for my Chapuis double.
Has anyone used this particular bullet in their double before? We've got 4831 and 4350 for powder and Winchester Magnum primers. I think Gerard suggests additional regulation by seating depth after appropriate velocity is reached, but I'm a little vague on that.

I have seen Roscoe shoot, hunt, smoke cigars, and drink whiskEy, and talk trash, but I have not seen him load ammo

They sell helmets, and flack jackets at the Army Navy store.

I can say none of his doubles have blown up at a DRSS event....

YET

19 June 2009, 06:58

Peter

Thanks Mike! Email sent!
Peter.

20 June 2009, 02:43

ROSCOE

quote:
Originally posted by N E 450 No2:

I have seen Roscoe shoot, hunt, smoke cigars, and drink whiskEy, and talk trash, but I have not seen him load ammo

They sell helmets, and flack jackets at the Army Navy store.

I can say none of his doubles have blown up at a DRSS event....

YET