The Firing Line Forums - View Single Post - problems with inconsistent charge weights

**Unclenick** · January 24, 2014, 12:32 PM

Note that powder bulk density (and VMD's) can vary ±6% from lot-to-lot in some powders (see bulk density specs on Accurate's site). This variation means you have to verify the actual charge thrown and not count on any volumetric calculation to be precise.

Bushmaster65,

That 20% change in charge drop is a lot. In addition to the functional checks mentioned above, do a double-check of the beam weight positions on the LSS. I don't have one, but a number of folks on the board have complained it is easy to miss the correct counterweight positions on the beam.

January 24, 2014, 12:32 PM	#12
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,722	Note that powder bulk density (and VMD's) can vary ±6% from lot-to-lot in some powders (see bulk density specs on Accurate's site). This variation means you have to verify the actual charge thrown and not count on any volumetric calculation to be precise. Bushmaster65, That 20% change in charge drop is a lot. In addition to the functional checks mentioned above, do a double-check of the beam weight positions on the LSS. I don't have one, but a number of folks on the board have complained it is easy to miss the correct counterweight positions on the beam. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle Last edited by Unclenick; January 26, 2014 at 03:44 PM.