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K.Wilhelm · 07-21-2013, 08:49 AM

I'm using Hornady 86 gr. JSP .308 bullets (really for .30 Mauser), but they seem to work well in my 1920 Commercial. For powder I've chosen HP38, but I had to work up to a charge well beyond the book to get the pistol to lock open when empty. I did this very gradually in .2 gr. increments looking for signs of excessive pressure. I stopped at 4.7 grains- the first instance at which the action would lock open. The fired primers began to look slightly flat at that point, so I'm not going any higher.

07-21-2013, 08:49 AM	#6
K.Wilhelm User Join Date: Jun 2013 Location: South Central Colorado Posts: 215 Thanks: 45 Thanked 109 Times in 66 Posts	30 Luger loads I'm using Hornady 86 gr. JSP .308 bullets (really for .30 Mauser), but they seem to work well in my 1920 Commercial. For powder I've chosen HP38, but I had to work up to a charge well beyond the book to get the pistol to lock open when empty. I did this very gradually in .2 gr. increments looking for signs of excessive pressure. I stopped at 4.7 grains- the first instance at which the action would lock open. The fired primers began to look slightly flat at that point, so I'm not going any higher. __________________ NRA Endowment Life member Proud veteran of the Naval Security Group