Hi,

I am looking to reload .223 with the 64gr Winchester Power Point bullets I already have and the H322 I already have.

The Hogdon manuals and website do not offer a load with a 64gr bullet.

This is from there website:

Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs.  Vel. (ft/s) Pressure    
60 GR. HDY V-MAX  Hodgdon  H322  .224"  2.250"  22.0  2873  40,300 CUP  23.5  3063  49,800 CUP    
63 GR. SIE SP  Hodgdon  H322  .224"  2.200"  20.0  2672  38,100 CUP  22.0  2862  48,400 CUP    
69 GR. SIE HPBT  Hodgdon  H322  .224"  2.235"  21.0  2746  40,500 CUP  23.0  2932  49,400 CUP    
70 GR. SPR SP  Hodgdon  H322  .224"  2.140"  19.0  2515  37,500 CUP  23.0  2962  51,200 CUP  

Should I interpolate between the 63 and 69 gr bullet and assume anything between 20.0 and 21.0 grains will be OK?    
Thanks in advance for any suggestions,
-J

Edited to add:  After a lot more searching on google, adjusting the query parameters for the 20th time, I found this thread:  http://www.ar15.com/archive/topic.html?b=6&f=42&t=272821 which answers my question.

Thanks!