Getting ready to start loading 5.7x28mm and shopping for dies. What is the difference in the full length and small base dies. I am looking to load for pistol 5.7x28mm and want to make sure I get the right loading supplies.
5.7x28mm die
- Thread starter Natemi
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This is info from the RCBS website:
“The Small Base Die set is intended for use for ammunition to be used in auto, semi-auto, and lever action rifles so that the loaded round chambers and extracts easily. The Small Base Sizer Die sizes the case from the shoulder to the head of the case a couple of thousandths smaller than a Full Length Sizer Die. In certain calibers it also sets the shoulder of the case back a thousandth or two more than the Full Length Sizer Die. The Full Length Die Set or Neck Die Set is not normally recommended for ammo to be used in auto, semi-auto, or lever action rifles. The Full Length Die set is recommended for ammunition used in bolt action rifles, particularly for ammunition to be used for hunting. The Neck Die Set can also be used to produce ammunition for use in bolt action rifles. The Neck Sizer Die sizes only the neck of the case so it will hold the bullet firmly. It does not size the body of the case nor does it set the shoulder back. Neck sized cases will usually chamber for three or more firings, depending on the powder charge and chamber dimensions. However, over a period of time, a slight drag will be noticed when the bolt is locked. At this point, cases will need to be full length sized and the shoulder set back. “
If you haven’t done so, I would suggest watching some You Tube videos on reloading this round. You may decide it isn’t worth the effort.
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“The Small Base Die set is intended for use for ammunition to be used in auto, semi-auto, and lever action rifles so that the loaded round chambers and extracts easily. The Small Base Sizer Die sizes the case from the shoulder to the head of the case a couple of thousandths smaller than a Full Length Sizer Die. In certain calibers it also sets the shoulder of the case back a thousandth or two more than the Full Length Sizer Die. The Full Length Die Set or Neck Die Set is not normally recommended for ammo to be used in auto, semi-auto, or lever action rifles. The Full Length Die set is recommended for ammunition used in bolt action rifles, particularly for ammunition to be used for hunting. The Neck Die Set can also be used to produce ammunition for use in bolt action rifles. The Neck Sizer Die sizes only the neck of the case so it will hold the bullet firmly. It does not size the body of the case nor does it set the shoulder back. Neck sized cases will usually chamber for three or more firings, depending on the powder charge and chamber dimensions. However, over a period of time, a slight drag will be noticed when the bolt is locked. At this point, cases will need to be full length sized and the shoulder set back. “
If you haven’t done so, I would suggest watching some You Tube videos on reloading this round. You may decide it isn’t worth the effort.
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This is correct. The lacquer finish should be preserved as much as possible. There are tons of You Tube videos and written articles with load data available on the internet. Use caution with the videos because there are good ones and bad ones.
Here is a pretty good one:
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Wash in simple green solution instead of tumbling. The lacquer finish was for the ps90 that rotates 90 degrees in the magazine when firing, if you are shooting the 5.7 pistol you should be fine if it gets scratched up a little. As others have said, treat like a bottleneck rifle round, trim and use a full length sizing die to ensure the shoulder is correct. Here's a forum dedicated to that round, lots of good resources here. https://www.fivesevenforum.com/ I have the Lee custom 5.7 dies and have around 2000 rounds through the press with little to no issue. Good luck