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Dinny Offline OP
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Anyone have IMR SR 4759 in their QuickLoad powder library? My bootleg version does not and I'd like to find data for that powder in the 357 Maximum case and 180gr JHP bullets.

Thanks, Dinny


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It's not in the V 3.9 database

Last edited by MickinColo; 11/06/22.
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Nope, it's not there...but, according to a burn rate chart I've looked at, 4759 falls right between ADI AR2205 and VV N120. Another chart I have, and I cannot vouch for its origins, indicates that AR2205 is an equivalent to the 4227s. All four of those powders are grouped together. Maybe that will give you some kind of idea where to go with it.

The Speer 11th manual shows .357 Maximum with a 180-grain TMJ starting load of SR 4759 at 16.0 grains and a max load of 18.0 grains.


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Dinny Offline OP
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Originally Posted by RiverRider
The Speer 11th manual shows .357 Maximum with a 180-grain TMJ starting load of SR 4759 at 16.0 grains and a max load of 18.0 grains.

Thank you!


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Glad to hep you out, even if in just a small way Dinny.


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Dinny Offline OP
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I overlooked that Speer manual. The velocities are still a bit fast considering they shot them from a 14" TC barrel and I have a H&R 22" barrel.

I'm trying to find a replacement for Viht Tin Star. With 9.0gr and a MP Molds 200gr LHP bullet I obtain 1159fps from my 22" barrel.

I may need to look at A2400 to see if a reduced load will get me closer to the 1100fps mark.

Thanks, Dinny


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I think that might work, but you may end up with lots of fouling with light loads in such a large case. W231 comes to mind, but if I didn't have any I might give W244 a try. I've never used it, but I believe it's supposed to burn cleaner than 231 based on reading a bit of ad copy.

I wish you luck!


Don't be the darkness.

America will perish while those who should be standing guard are satisfying their lusts.


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Ken Waters often preferred IMR 4227 to 4759 for his cast loads. If you check his data you will see that both powders are very close in Grains per velocity in Cast loads. 4227 is available though expensive nowadays. Good luck!

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You can see back in 1983 that they were very close to the same burn rate. 1983 was a much simpler time.
1983 Burn Rate Chart

1 Norma R-1
2 Bullseye
3 Winchester 231
4 Hercules Red Dot
5 IMR Hi-Skor 700-X
6 Hercules Green Dot
7 IMR SR-7625
8 Hercules Unigue
9 IMR SR-4756
10 Alcan AL-5
11 Hodgdon HS-5
12 Alcan AL-7
13 Hodgdon HS-6
14 Winchester 540
15 Hercules Herco
16 Hercules Blue Dot
17 Alcan AL-8
18 Hodgdon HS-7
19 Winchester 630
20 Hercules 2400
21 Norma R-123
22 Hodgdon H-110
23 Winchester 296
24 Du Pont IMR SR-4759
25 Du Pont IMR-4227

26 Hodgdon H-4227
27 Winchester 680
28 Norma N-200
29 Du Pont IMR-4198
30 Hodgdon H4198
31 Hercules Reloder 7
32 Du Pont IMR-3031
33 Norma N-201
34 Hodgdon H-322
35 Winchester 748
36 Hodgdon BL-C(2)
37 Hodgdon H-335
38 Du Pont IMR-4895
39 Hodgdon H-4895
40 Du Pont IMR-4064
41 Norma N-202
42 Du Pont IMR-4320
43 Hodgdon H-380
44 Winchester 760
45 Hodgdon H-414
46 Hodgdon H-205
47 Du Pont IMR-4350
48 Norma N-204
49 Du Pont IMR-4831
50 Hodgdon H-450
51 Hodgdon H-4831
52 Winchester 785
53 Norma MRP
54 Hodgdon H-870

Last edited by MickinColo; 11/12/22.
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Dinny Offline OP
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Thanks! I have some 4227 and will give it a serious look.


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The problem with the 4227 choices is that in order to keep velocity down to around 1100 fps, you'll have to tolerate very low pressures resulting in about 65% of the charge being consumed. I think that will lead to significant inconsistency...but admittedly, I've never tried such a thing. I have no idea how 4759 would fare, but I suspect it wouldn't be much better.

Tin Star and Trail Boss would be what you need, IMO. It's a shame that you're not likely to find either anymore.


Don't be the darkness.

America will perish while those who should be standing guard are satisfying their lusts.


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I would agree with RiverRide, while IMR 4227 and SR-4759 were adequate powders in the charge range already mentioned. Trying to use 4227 to get down to 1100 fps would not be a good choice, IMO.

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Dinny Offline OP
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Trail Boss achieved excellent accuracy with my LHPs but velocity maxed out at 920fps. Not even my 30:1 alloy would expand reliably in wet newspaper at that speed. That's why I made the switch to Tin Star. It would seem finding a suitable replacement might be challenging. I will double check my load notes to see if I tried Red Dot. It might work.

Thanks, Dinny


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Originally Posted by Dinny
Trail Boss achieved excellent accuracy with my LHPs but velocity maxed out at 920fps. Not even my 30:1 alloy would expand reliably in wet newspaper at that speed. That's why I made the switch to Tin Star. It would seem finding a suitable replacement might be challenging. I will double check my load notes to see if I tried Red Dot. It might work.

Thanks, Dinny

Lil gun 13.5-16 grains will get you there with about 65% case fill.
9-10 grains CFE Pistol 65-70% fill
11-12 grains AA7



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Dinny Offline OP
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Thanks Swifty! I have CFE Pistol and Lil Gun.


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IMR 4759 was discontinued several years ago, even before that availability was sporadic it was only made in periodic runs from time to time.

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Dinny Offline OP
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Originally Posted by gunswizard
IMR 4759 was discontinued several years ago, even before that availability was sporadic it was only made in periodic runs from time to time.

No schit sherlock!


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David Bradshaw may have some input, he was a major part of the Max.
I have some loads that used a 170 cast and deep seated. They shot great out to about 125 then went to totally hopeless after that, shot out of a revolver.


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