Jump to content
Brian Enos's Forums... Maku mozo!

Dillion Powder Measure Question


Recommended Posts

How do I get the measure to throw accurate loads when using the large powder bar?  When I am loading for pistols using the small bar the throws are spot on.  When I try to load for rifle using the large bar my throws are +/-.5 grain.  I am using 748 and TAC as my powders.  I have tried two measures and 4 different powder bars and the results are the same.  The calibers I am loading are 5.56 and .308.  When I try these powders in a measure with a small powder bar they measure out just fine.

It is at the point where I can not trust the measure to throw a accurate load and have to weigh each one to make sure it is correct.  Kind of defeats the advantage of using the 550 for rifle loads.

 

Thanks for any help,

Bill

Link to comment
Share on other sites

Polish the inside of the measure...the cast part’s surface is rough.  Certainly helped out my measures.  Some folks report improved consistency with an aftermarket powder baffle.  Spherical powder like TAC dropped with improved accuracy after I polished mine. Still would vary .3 at times. How hard you run the machine matters as well.  If you care about accurate powder throws, you have to slow down. 

As an aside, I rigged a Hornady powder measure with their case activation accessory to throw extruded rifle powder.  
 

ETA - Google precision ammo loading on a Dillon or similar. Quite a few detail forum threads out there...

Edited by Middle Man
Additional info
Link to comment
Share on other sites

This is what I used to increase the accuracy of my powder drops. I don't work for this guy and I have no interest in his profit but I have one of these on both of my powder bars. 

13A80DF9-C080-4C8A-B5DE-4B236AAA6E09.jpeg

Edited by N7VY
Link to comment
Share on other sites

I would clean/polish the inside of the hopper.  I load 223/556 and 308 on my 650.  I use H335 for 223/556 and H4895 for 308.  Both are very consistent throws.  As stated above, you need to slow down a little.  Try holding the down stroke for a second or two.  Remember that you're dropping a lot of powder into a rifle case, not 3-4 grains of pistol powder into a pistol case.

Link to comment
Share on other sites

Uniquetek has a pdf in their tips and tricks section that can help get some more accuracy out of the dillon powder measure. I gave up on powder dispensing for rifle and just have my dies in my 550 and use my redding powder measure to do 50 rounds all at one time. Less movement during powder drops make for more consistent drops. Then back to the dillon for bullets and crimp.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...