57springer
Buckeye
I want to copy the factory .357 125 gr. loads. Does anyone have any info ? What powder ? Thanks
I am looking to duplicate the factory loaded .357 American Gunner ammo . by Hornady. I bought a box and like the group I got with it and being a reloader want to load it myself. thanks. :wink:Jimbo357mag said:
That's what I want to find out , What the powder is ? and how much.WIL TERRY said:YOU CANNOT duplicate it perse' as you do not have access to the propellents they've used.
Hmmmm. Didn"t know about all the different powders, Guess I start trying some published loads .WIL TERRY said:AND FURTHERMORE, all of their ammunition is loaded into brand new UNFIRED brass. THAT makes a big difference as every time you fire a case it work hardens and that'll make a BIG difference in performance.
ALSO, all non-canister propellents are different that ANY you can buy, you will NOT find out what they are, and you'll not duplicate their loads as ALL are loaded to SAAMI pressure specifications NOT to velocities which will be near the desired performance on most days but NOT on all days. THINK about that !!!
For instance...there were ten [ 10 ] grades of BULLSETE propellent manufactured by Hercules and I imagine the same by ALLIANT. SO, which one of the ten is the one sold as canister grade ?
I have some hs-6 , I will try it. I never knew it was a big secret whats in factory ammo and have been reloading since the 80s.Jimbo357mag said:When it comes to duplicating a factory load I have found that manufacturers often use a medium speed powder, one that is more economical than the slow powders. Try Hodgdon HS-6 or Universal, something like that and see how it feels to you. A faster powder might be HP-38/W-231, very economical to load. Accurate #5 might be another choice.
powder burn rate chart.
http://www.hodgdon.com/PDF/Burn%20Rates%20-%202014-2015.pdf
I have pulled the bullets from some factory loads to look at the powder. This Federal load is ball powder. The others are flake powders. Thats about all you can tell.57springer said:I have some hs-6 , I will try it. I never knew it was a big secret whats in factory ammo and have been reloading since the 80s.