CMJ verses FMJ

[stefofthenorth]

I have been wanting to experment with some new loads . I have frontier 45 acp 230gr. CMJ .
I wanted to use titegroup and when I look on the website it lists data for LRN and 230 Grn HDY FMJ FP.
Which load data would I go with. They both have the same max load of 4.8 gr it is the starting load that is different , the LRN is 4.0grn and the HDY FMJ FP is 4.4 grn.

 

[K-C]

.45 Automatic (ACP) with Frontier CMJ .45 Cal 230gr RN bullet

ASSUMING ALL OF THE FOLLOWING
Standard Pistol Primers (NOT Magnum)
bullet length = 0.642" (Frontier published)
Barrel length = 5.0"
Case Length = 0.898"
Case Capacity, overflow = 25.0 gr. H2O
Cartridge O.A. Length = 1.210"

THEN
Start load: 3.9 gr TiteGroup; 15700 psi; 760 fps

MAXIMUM load: 4.5 gr TiteGroup; 20,500 psi; 836 fps

I generated this data using QuickLOAD and can email the two pdf files to the OP if requested...

FYI: an additional calculation showed 23,195 psi chamber pressure using 4.8 gr - SAAMI Pmax is 21,000 psi for .45 Auto
So, as always, work up your loads safely!

 

[brewmech]

I use 4.5 of titegroup in mine with any 230 gr, jacketed, cast or plated.

 

[Spawn-Inc]

I use 4.5 of titegroup in mine with any 230 gr, jacketed, cast or plated.

2nd that.