I have been playing with SR 4759 powder for writing a Book on Downloaded Cartridges for Youths. It was the next powder I picked based on it's accuracy and user friendliness.

If anyone is interested in this data, or in any particular caliber let me know. So far I am working on the following: 243, 270, 30/06, 300 Win Mag, and 444 Marlin.

I do this in between other things to do ( like running a business) and play havoc with the Oregon winter weather, as I have to do some of this on "chronograph friendly days" courtesy of Mother Nature.

Cheers and Happy New Year
seafire

I'm interested in it all,propjob.roger

I loaded some SR 4759 in a 308 years ago for an old girlfriend who wasn't much for recoil.

The stuff seemed to work real well at doing what it was supposed to do (i.e. light loads).

Seafire:

I have been using SR4759 in the 22 Hornet as well.

Jerry

My first experiments with Blue Dot were not only great fun but also quite interesting. When doing more research on the subject, I also came upon SR 4759 data in my Speer reloading manuals.

Unfortunately, this powder is not available here but has burning characteristics very similar to Vihta's N110. The latter is used in many reduced loads available in both the manuals of Vihta and the German research institute DEVA.

When asked however, Vihta stated that they could not confirm (for understandable reasons) that the SR 4759 data can be used for their powders as well. They did state that N110 is be an appropriate powder for this kind of applications. No data are available on the 338 WM though.

Since N110 and SR 4759 are both slower than Blue Dot, these powders would allow to possibly reach the same speeds at lower pressures. My Blue Dot load was calculated at 3600 bar which is below max but I guess that a further reduction wouldn't do any harm, either.

DUK,

Most all the newer Lyman reloading manuals list SR4759 as a reduced load with cast bullets. AA5744 is similar and is listed quite a bit also. The IMR free data manuals that come out every year used to always list 4759 also with many rifle loads.

I did not know that N110 could be used in the same way. I know that it's very close to #2400 in loadings for the .357 and .44 and #2400 makes some pretty good reduced loads too. BM

Bill

I would also be interested in all your data.
Thanks,
Wayne

DUK:

I will look into seeing if H 110 is any relation to the N110 you mention. If it is, let me know what calibers you might be interested in testing it in. I am looking to do some pamphlets on this sort of data, to help out new shooters, or younger shooters or women.

It is a little time consuming but as you indicated it is a lot of fun or motivational is a better word for the experience.

seafire/B17G,

I am interested in your data for the .243, .270, and '06 with the SR 4759 powder.

I have quite a bit of your work with Blue Dot in my "Loads to Try" file and really appreciate your efforts.

I have several rifles, in various calibers, dedicated to reduced cast "boolit" use only.

Seafire, I've had mixed results with 4759, all with cast/swaged bullets. Hard cast 110 gr loads in a mod 94, 19 gr of 4759 IIRC...suprisingly crisp. Primer flowed, chrony velocity near 2800 fps as I recall. It was a sample of one, I dismantled the rest and haven't used it since except for some .44 loads which worked fine. It was a bit bulky for what I was trying to accomplish there.

quote:

---

Originally posted by P47D:
DUK:

I will look into seeing if H 110 is any relation to the N110 you mention

---

It seems that the burning rates are similar. However, H110 (which I, by the way, use in my 45 LC) is a ball powder and magnum primers are recommended. N110 is not so there are, I guess, some differences.

I'd mostly be interested in the 338 WM and I presume that there are many hunters with one in their safe and not a real need for such a heavy banger.

Seafire;

Very interested here. Would like to see 308 Win and 7mm-08 Rem, but happy with any data and trends you can document. The bane of my reduced load work has been horrendous accuracy--could often do better with buckshot. Looking forward to any reports and thanks for your efforts.

HS

[QUOTE]Originally posted by DigitalDan:
Seafire, I've had mixed results with 4759, all with cast/swaged bullets. Hard cast 110 gr loads in a mod 94, 19 gr of 4759 IIRC...suprisingly crisp. Primer flowed, chrony velocity near 2800 fps as I recall."

I don't doubt you for a minute,DD, but I am a little shocked and a whole bunch surprised. I've used 4759 in many rifles for reduced loads over the years and have always found it to be a mild super charmer. By the way what cartridge was the Mod. 94 chambered for? roger

Sure am. I appreciated the 270 loads you did a few weeks back, and I do have a 444 I would love to lighten up.

Yep, I'd be very interested in it. Also anything you work up for the .300 RUM

Let's see if I can get to all the requests.

I have access to a ton of different calibers, but not everything.

For Montecello: I am working on the 444 as we speak. Had some excellent results! If you liked the 270 results, you should love the 444 results!

High Slot: I apologize that I do not own a 308 or 7/08. The reason I don't is that I have a couple of 7 x 57s and a couple of 30/06s.
The 7 x 57 and the 7/08 will be awfully close with the lighter powders as case capacity is not that significantly different. I am trying to run down or get access to a 308. I have no need for one, except to do some of this load data. In 30 caliber, I have 30/06s, a 30/40 Krag, several 30/30s and a 300 Win Mag, with access to a 300 Weatherby. However, NO 308.
What a nerd I must be, huh??

DES: As stated above is my 30 caliber arsenal which I have access to. However, I have found playing with 5744 data, that for faster powders, like 4759, and even Blue Dot ( which everyone knows me for) that there is not a lot of difference in the 300 Winchester and the 300 Weatherby or the 300 RUM. I have noticed in testing, that the results of the 300 Winchester and the 30/06 are not that far off. Like 25 grains of powder in the 30/06 was about 50 fps faster than the same load with the same bullet in the 300 Mag. The only difference is that the Magnum takes more powder to reach its max pressure limit which allows it to take more powder, and hence greater velocity potential with the faster powders. EG: The 30/06 will take about 33 grains of 4759 to reach its max pressure, whereas a 300 Winchester will take a little over 40 grains to reach peak pressure.

The Magnums, especially the short magnums seem to have a lot more flexibility with the slower burning powders.

I am finding out all sorts of stuff, that this load data works real well in contenders etc.
I have talked to Mike Bellm about doing some testing for some of his Contender and his proprietary cartridges, since he and I live in the same Hoooterville town in Oregon.

I find a lot of things out doing this testing, and they always don't follow normal accepted schools of thought.

Cheers & Good shooting
seafire

Old Speer Manual.

.300 165gr. - max 29.0 - min. 25.0 Vel. 2000 - 1736
" 150gr. - max.28.0 - min. 24.0 Vel. 2028 - 1743

30-06 165gr. - max.25.0 - min. 21.0 Vel. 1941 - 1616
" 150gr. - max.24.0 - min. 20.0 Vel. 1957 - 1620

.270 150gr. - max.26.0 - min.22.0 Vel. 1957 - 1655
" 130gr. - max.24.0 - min.20.0 Vel. 1998 - 1651
" 100gr. - max.20.0 - min.16.0 Vel. 1915 - 1548

Beartrack;

Those capacities are low compared to IMR published maximum for those cases.

That is sort of why I take the time to test it and find something that works. I am sure it was not a big importance to Speer, as the interest was probably low, but who am I to tell?

For instance where you have the max load for the 165 grain bullet was 26 grains, IMR lists the max for a 180 grain as 29.5 and the max for a 150 grain at 32 grains.

But that is why we reload. Each rifle is an entity unto itself.

Cheers and Happy New Year
seafire

Just a curosity question on the SR4759.How consistant do you find the SR4759 from lot to lot?I have shot several pounds the last 2 years in a muzzleloader(savage) and haven't had a problem because all I have gotten has been the same lot number.Some of the fellows on the savage report that it is very incosistant from lot to lot.One said it was only made once a year in Canada for IMR but one fellow had 2 different lot numbers for one years date.
The lot I have has worked great in summer and winter temperatures in the muzzleloader but really don't have a need for the reduced loads.Just looking ahead when the lot number I have runs out.Thanks

Owensby:

I have had consistent continuity for several different lot numbers. That is why I am testing its velocity in different calibers.

If the powder does not have consistency, it is useless in downloading. Like 4756 for instances that powder made by the same manufacturer has horrendous points that the pressure spikes something awful.

SR 4759 is a winner in my book. I stumbled on it on a 30/30 load and it was the most accurate load I ever shot in a 30/30. This one particular rifle doesn't shoot any powder or bullet with any consistency. But it sure loves SR 4759.

Cheers and Happy New Year
seafire

Thanks for the info seafire.I was a little worried about when I ran out of the lot number here.
In the muzzleloader I love the 4759 I shot over a thousand rounds with different powders this past year and the 4759 was the best that I used so far,summer and winter,and range trip to range trip.Very consistant.

30-30.

I've been using a 20 grain blue dot load in my 7mm-08 with a 100 grain HP after reading your 7mm blue dot report,it will shoot .5 moa 95% of the time,,,and you can watch the bullets impact on a yote,,,I like that, I to use the 4759 in my Savage ML so the more data the better!

Thanks for the blue dot info!!!!!

How are those loads coming along seafire?

I have been off the boards lately doing a considerable amount of whitetail hunting. I got a little 10 point Sunday morning. I hit him with a .270 130 SST with 48 grains of H4350 at 35 yards. It was pure devestation on the little guy. If anyone wants pics of the carnage email me at rtm1118@aol.com

seafire/B17G,

I'm trying to get info on reloading 180-200 gr bullets in a 30-30.
Do you have any info for powders/starting loads?

This is an old tread that was dredged up....

It has been a busy year and I have not had the time to get to the data collection that I wanted to with SR 4759... although I bought 10 pounds of it...

This is on my "To Do List" if I can keep it ahead of my wife's " Husband to Do List" and My son's " Dad, the Boy Scouts Need Ya to DO list"

I will get together my results and post them... and start working on this.. as I really do enjoy doing this... If I had an indoor range to have access to.. I'd be able to do a lot of this...

However, Oregon is a trifle soggy this time of year to say the least....

cheers
seafire

I am interested in the 30-06 info too. D

I would be interested,if you get around to it, I have been using h-4895 in "youth" loads for my daughter, but have some 4759 on hand

quote:

Originally posted by BlueMoon:
DUK,

Most all the newer Lyman reloading manuals list SR4759 as a reduced load with cast bullets. AA5744 is similar and is listed quite a bit also. The IMR free data manuals that come out every year used to always list 4759 also with many rifle loads.

I did not know that N110 could be used in the same way. I know that it's very close to #2400 in loadings for the .357 and .44 and #2400 makes some pretty good reduced loads too. BM

Bill

BlueMoon....

Could 2400 or N110 be used for reliable reduced loads in 243?

Regards

....Titan

There is a data book available from the German lead bullet manufacturer H&N. Most of their data for reduced rifle loads are based on N110, Vihta powders are what we use most here.

I never loaded for the .243 but would be surprised if this wasn't doable. Let me know if you want me to look up their information on this caliber or calculate it in QuickLoad.

DUK

Thank you. I would appreciate any data you might have available for the 243.

Regards
....Titan

Seafire -

Please let us know here when your book comes out, and who publishes it. I'd sure buy one in a heartbeat.

Although I know this is a very weak load by most current "book" standards, one of the best cast bullet loads I've ever had for my various '06s was 17.0 to 19.0 grains of 4759 with the Lyman 311467 bullet and a GC. I never chrono'd it, but I hunted a lot with it in Canada when I was relatively young. Of course the powder itself may have changed a bit since then. In those days it was made by Dupont, in the U.S., and sold for less than $3 per tin.

quote:

Originally posted by Titan:
DUK

Thank you. I would appreciate any data you might have available for the 243.

Regards
....Titan

I just checked, there is no data on the .243 cartridge in the H&N book. However, the .308 Win might give some indications since it is a similar case:

For a 125 grain bullet they indicate 17.5 grain Vihta N110.

Quick Load indicates for the .243 Win that you can safely go higher with a 100 grain Sierra SP bullet:

Diff....Fill...Load......v0.......E0.....Pmax
%.......%......Grains...fps.....ft.lbs....psi

-10,0...52...20,70...2306...1181...37065
-09,0...53...20,93...2321...1196...37840
-08,0...53...21,16...2336...1212...38625
-07,0...54...21,39...2351...1227...39419
-06,0...54...21,62...2365...1242...40224
-05,0...55...21,85...2380...1258...41038
-04,0...56...22,08...2394...1273...41865
-03,0...56...22,31...2409...1288...42700
-02,0...57...22,54...2423...1304...43547
-01,0...57...22,77...2437...1319...44403
+00,0...58...23,00...2452...1335...45275

For the 85 grain SP bullet:

+00,0...60...24,50...2677...1353...45692

How to read: 23,0 grain N110 equal 2452 fps velocity and 45275 psi pressure, safely under max. However, like always operate with care!

Sorry for the bad formatting of the table.

20g of SR-4759 and the 150g Rem Core-Loc was a fun and accurate load in my 350 Rem Mag. It worked well with pistol bullets as well. Have no idea what the pressure is on this load. I chronographed it but don't remember the exact velocity.......a little over 2,000 fps the best I remember.

Seafire, I have used the 4759 in the .375 H&H with the Speer 235 grain offering and had a splendid offhand practice load. I found it interesting that better results were with the F215 primer... Food for thought.

quote:

Originally posted by DUK:
[QUOTE]Originally posted by Titan:
DUK

Thank you. I would appreciate any data you might have available for the 243.

Regards
....Titan[/QU

I just checked, there is no data on the .243 cartridge in the H&N book. However, the .308 Win might give some indications since it is a similar case:

For a 125 grain bullet they indicate 17.5 grain Vihta N110.

Quick Load indicates for the .243 Win that you can safely go higher with a 100 grain Sierra SP bullet:

Diff....Fill...Load......v0.......E0.....Pmax
%.......%......Grains...fps.....ft.lbs....psi

-10,0...52...20,70...2306...1181...37065
-09,0...53...20,93...2321...1196...37840
-08,0...53...21,16...2336...1212...38625
-07,0...54...21,39...2351...1227...39419
-06,0...54...21,62...2365...1242...40224
-05,0...55...21,85...2380...1258...41038
-04,0...56...22,08...2394...1273...41865
-03,0...56...22,31...2409...1288...42700
-02,0...57...22,54...2423...1304...43547
-01,0...57...22,77...2437...1319...44403
+00,0...58...23,00...2452...1335...45275

For the 85 grain SP bullet:

+00,0...60...24,50...2677...1353...45692

How to read: 23,0 grain N110 equal 2452 fps velocity and 45275 psi pressure, safely under max. However, like always operate with care!

Sorry for the bad formatting of the table.

DUK

Thank you for this information.

Regards

....Titan

My pleasure. Let us know how it works.

Best regards.

Having just purchased 12 lbs of 4759 to place behind Boolits, I would love to see some loads for bullets also.
You might as well add the 7.92X57 and 30-30 to the list.

BTB your BD work allowed a friend of mine the pleasure of helping her son with his first deer.

Recoil sensitivity was overcome with practice loads with cast and Red Dot and then a modification of your 30-30 BD loads with 110gr 30 Carbine soft points dropped a first deer for Lucas.

Very vesitile and interesting powder. Have used it for several reduced load applications as well as for making shot shell loads for my 45 Colt

Seafire, If you can scrounge up a 308 Win, I'd also be interested in the data (and indebted to you, as well ).
Gary T.