SpeedQuest Posted June 4, 2013 Share Posted June 4, 2013 Hey guys. Got my NEW XL650 almost 100% now. I am just waiting on a powder scale so I can begin dropping powder. In the meantime, I have been toying with the different stations and trying to establish my dies. I am shooting a Springfield XD SubCompact 9mm. Here are the components I am using: MG 124 JHP Used Remington range brass Eventually, I will be using Alliant E3 powder and Winchester SP primers once I get the powder measuring calibrated. Here's my question. I 'built' a round with an OAL of 1.120 after reading some of the recommendations and 'recipes' posted. However, this won't feed properly in my gun. So I measured the store bought rounds I currently use. They have an OAL of 1.068 - 1.080. Taking a cue from this, I started building rounds at 1.075 and they cycled well. As I 'extended' the length, I eventually found that my gun doesn't like anything beyond 1.099 OAL. Does this sound correct? The crimp I seem to get is about .378-.379. How's that sound? All of these powderless/primerless rounds also seem to have a 'Coke' bottle taper to them in that they bulge at the top, taper in the middle and then resume normal size at the bottom. They measure .385-.386 at the bottom, .373-.375 in the middle, and .378-.379 at the top. What causes this and is it acceptable? I have been using the Dillon 9mm Case Gage to test all of these rounds and some were definitely 'tight' as the round reaches the last 1/32"-1/16". Running them through stations 4 & 5 a second time, seemed to eliminate this. Also, as a side note, I am wondering how 'short' OAL is too 'short'? Will shorter OAL raise pressures and therefore speed? Obviously the factory rounds that I have some measure 1.068 and still work. Enough for now though. I appreciate you guys assistance! Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now