I find big differences too with all manufactures, not just Nosler' s. We can only use the information we get in the manuals as a guide to go by. Trying to get exact duplicates of what a " book" says is a hit and miss deal.

Shooting conditions differ greatly, most companies probably use inhouse or underground ranges with set tempetures and humidity. Often test barrels are used which have minimum tolerences. Power can vary from lot to lot. As you can see, the only way you will really compare would to use exactly the same stuff as the maker of the load info.

With all firearms you will find that no 2 will shoot the same, some will vary alot and some wont. Some factory rifles with have chambers on the maximum side while some will have tighter ones, some 22 inch barrels will shoot faster than 24 inch barrels. That' s just the way it is. I find that using top quality barrels and having them chambered by a good smith can often improve on the velocities over a good factory gun.

All guns are not created equal, some will take hotter loads than others, that' s why it is always safe to start with a minimum recomended load and work up. You will be able to find what is a safe maximum load in YOUR firearm and not the rifle used in __________' s Reloading Manual.


AA