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newshooter1
HB Full Member
| Joined: | 25 June 2008 |
| Location: | Sulphur, Louisiana USA |
| Posts: | 7 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | rifle |
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Posted: 19 July 2008 03:13 AM |
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| does anyone know what exact powder is in the winchester supreme 150 gr. ballistic tip in a 300 wsm? out of all the loads Ive tried I can't seem to beat the accuracy of these factory loads, I would like to copy them if I can. I've used h4350, rl19,w760 and the closest was the w760.
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Slingshot
HB Pro Staff
| Joined: | 19 May 2008 |
| Location: | Elgin, Illinois USA |
| Posts: | 95 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | rifle |
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Posted: 19 July 2008 03:47 AM |
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Most powder companies use a special blend or I think its called "Data" powder (someone correct me if I am wrong) 760 is a great powder give Accurate Arms powder a try http://www.accuratepowder.com/
Most of it is hit and miss (no pun intended) you will find a powder load that will beat the factory load just takes some tinkering.
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Paul Tummers
HB Life Member
| Joined: | 18 June 2007 |
| Location: | Berg En Terblijt, Netherlands |
| Posts: | 327 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | rifle |
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Posted: 19 July 2008 11:39 AM |
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It seems to be a mixture, sometimes they buy powders from other companies, even if they do have powder manufacture of themselves, just to keep performance at preciese level.
As far as I know, RWS makes powder, but also blends Norma and Vhiavuori powders.
A nice thing to have a laboratory and some pressure measuring guns!
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miestro_jerry
HB Life Member
| Joined: | 28 June 2008 |
| Location: | Somerton (AKA BFE), Ohio USA |
| Posts: | 623 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 19 July 2008 11:23 PM |
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I found years ago, that what is in the factory ammo, youjust came seem to pin down what it is and you can't always buy it.
I found this with 30-06 and 308 both Winchester factory ammo. I took the powder out of them, weigh the powder and try them in some other cartridges. They really didn't act like what I thought they were. One gave me a surprise.
Jerry
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A Closed Mouth Gathers No Foot
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runfiverun
HB Full Member
| Joined: | 9 February 2008 |
| Location: | Soda Springs, Idaho USA |
| Posts: | 62 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 19 July 2008 11:31 PM |
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factories get a new lot of powder, test it in the cartridge they are gonna load it in, till they find the pressure they wanna run, then load it.
but if i were you i would look at win 780..
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miestro_jerry
HB Life Member
| Joined: | 28 June 2008 |
| Location: | Somerton (AKA BFE), Ohio USA |
| Posts: | 623 |
| Photo: | [Download] | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 20 July 2008 12:14 AM |
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I use W748 these days, RL19, 4198, 4064 and Norma Magnum powder for these bigger cases. I use the 748, 4198, H335, 3031 and BL-C(2) for my 223, 7 TCU, 221 Fireball, 30-30 and few others.
For pistol rounds, I use W231, Unique and 2400 depending in the cartridge and the bullets.
I don't take old/salvage cartridges apart any more for the powder, I just salvage the brass and the bullets. The powder goes out in the drive way with a fuse and a match. I have a septic system so I won't flush the stuff, like I did when I lived on the city.
Jerry
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ryalred
HB Full Member
| Joined: | 12 May 2008 |
| Location: | SE, Oklahoma USA |
| Posts: | 36 |
| Photo: | | | Are you a handloader?: | Yes | | Favorite type of cartridge to load?: | I load everything! |
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Posted: 22 July 2008 04:20 PM |
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Don't think you'll be able to nail down the exact powder they use. I have read that they blend their powders to get exactly what they want. You and I cannot purchase that powder. We are limited to canister powder. The best way to duplicate the factory load is to shoot it in your gun and find out what the velocity actually is in your gun (must use a chrony) and then find a powder that will duplicate that velocity in your gun with that bullet.
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