This is only my second post on this site and I've just started sorting through all the info here, so forgive me if this has been said before. I been loading for Mausers for the past 20 years and what I have learned is that if they have the original military barrels they will have a long throat cut, which if I Remember right is about 1 1/2 calibers which is done to help relieve pressure. Due to this they don't fare to well with boat tail bullets or light bullets. You will most likely get good accuracy with the flat base longer heavier bullets. Another trick that I have found is to only partial size the brass when handloading. This will leave a donut shaped ring on the neck just before the shoulder which will help center the round in the chamber. If you have some brass that has been shot after a full length resizing, odds are you will discover that it isn't concentric anymore. Most of the Mil chambers are cut a little loose to function better with a lot of crud in the gun. When you fire a round in this loose chamber, it will not expand uniformly due to the brass laying to one side of the chamber before firing. After you've fired all of your brass and partial sized it, do that from here on out. Roll a few of your rounds on a smooth surface after loading them to see if the tip of the bullets wobble. Concentricity is the key to accuracy.
