Acme and N320 Loads

[Jollymon32]

So I am moving to coated bullets and have heard that coated bullets take less powder.  I need a starting point for my ladder tests.

 

I have sample packs of Acme 125 and 135 round nose bullets.

 

Powder will be N320.

 

Do you load this comobination?  If so, care to share the load data?

[muncie21]

My standard 9mm load is a 135gr coated (BBI or Bayou) bullet over 3.5gr of N320 or Prima V. at an OAL of 1.080.  This gets me ~130PF from my CZ and Grand Power. 

 

Depending on the barrel your loads will be fired from, you could likely increase the OAL a bit, which in turn 'may' require more powder to hit 130PF.  I'd suggest making a few dummy rounds to confirm OAL and then starting low and working your way up to the PF/velocity you would like to target.

[Jollymon32]

On 6/24/2018 at 6:53 AM, muncie21 said:

My standard 9mm load is a 135gr coated (BBI or Bayou) bullet over 3.5gr of N320 or Prima V. at an OAL of 1.080.  This gets me ~130PF from my CZ and Grand Power. 

 

Depending on the barrel your loads will be fired from, you could likely increase the OAL a bit, which in turn 'may' require more powder to hit 130PF.  I'd suggest making a few dummy rounds to confirm OAL and then starting low and working your way up to the PF/velocity you would like to target.

 

Good to know!  Thanks!

 

Any loads for 125gr coated bullet?  Is it generally more or less powder than a heavier bullet?

 

Thanks!

[Flatland Shooter]

44 minutes ago, Jollymon32 said:

 

Good to know!  Thanks!

 

Any loads for 125gr coated bullet?  Is it generally more or less powder than a heavier bullet?

 

Thanks!

 

Heavier bullet less powder. 

 

My loads with N-320 are 147 gr RN plated bullet = 3.3 N-320 (1.085" OAL),     125 gr coated RN (1.10" OAL) = 3.9 N-320 and     115 gr coated RN (1.10" OAL) = 4.3 N-320.  

 

I run these in a 16" barrel for a PF in the mid-140's.

Edited June 25, 2018 by Flatland Shooter

[Tunachaser]

Vithavuori load data suggest 3.8 to 4.1 grs. of N-320 for a 124 gr LSWC.  I load the Acme 124 RN at 3.9 and get 131 PF in my SP-01.