There are manuals available that have loads that are supposed to equal or exceed factory velocity but none I know of that give the actual load used in factory ammo. Factory ammo is sometimes loaded with powder that isn't available to the public and some factory ammo appears to be loaded with a duplex load of 2 different powder types.
I'm not aware of any factory ammo using duplicate loads...would seem to be too great a risk in the propellants mixing during shipment and handling, which could/would alter the ballistics (and pressure!)
Factory ammunition IS loaded with non canister grade powders...they don't load 40 grains of IMR 4895...they load to a standard pressure whether it takes , depending on the powder lot, 38 grains, or 42 grains. Canster grade powders sold for reloaders are blended to have as small a lot to lot varience as possible.
Havent really ever wanted to duplicate factory ammunition. My ammunition is superior for my rifles since it is tailored to that specific rifle. Generally, I can achieve the same speed and much better accuracy than factory loads. The only rifle I shoot factory ammunition in is a 22LR. Understanding that each rifle is an individual and has specific likes in regards to it's feeding is important.
In "Ken Walters Pet Loads" by Wolf publishing, he talks about some factory loads he has deciphered on certian calibers. For example, (he states in the article), a Remington factory load for the 7mm-08 which uses a 7mm 139 gr. Hornady bullet and Winchester 760 powder. Good luck
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PROUD HUNTERS KILL THEIR GAME THEY DON'T HARVRST THEM!!
Most ammunition manufacturers publish the ballistics for the various loads they make. Generally you can find this information on their web site. The only reason to duplicate a factory load, as far as I can see, is if you have some to use for practice.
For example, I found a great deal on some Federal match ammunition, so I bought quite a bit of it. I prefer Federal brass for reloading, so as I shoot the factory ammunition for practice, I end up with fire formed brass to reload with premium bullets for hunting. I also tried to duplicate the factory loads in one lot, mostly to see if I could. The data for the factory round available (no powder information) showed 2600 FPS, using a Federal large rifle primer and a 168 grain Sierra match PHP bullet. I pulled a bullet and weighed the powder, which wasextruded, and looked like (there is no way to tell for certain) IMR 4064. Since that is a good powder to use in a .308, I reloaded some 165 grain Partitions to 2600 FPS, using data from the reloading manuals. Since I do not have a chronograph, I made several bullets with differing powder loads, and tried them until the factory ammunition and mine shot the same. Now I have hunting loads that shoot the same as cheaper factory ammunition I can use for practice, at least in that particular rifle.
The data for the factory round available (no powder information) showed 2600 FPS, using a Federal large rifle primer and a 168 grain Sierra match PHP bullet. I pulled a bullet and weighed the powder, which wasextruded, and looked like (there is no way to tell for certain) IMR 4064. Since that is a good powder to use in a .308, I reloaded some 165 grain Partitions to 2600 FPS, using data from the reloading manuals.
Just because two loads have the same weight bullet and the same velocity does not guarantee that the point of impact will be the same.
Is There Any Reload Manuals That ?
