Originally Posted by
John Boy
Incorrect about hardness to CCI
2015 Update
Test Procedure: Using a Lee Hardness Tester that measures Brinell hardness, placed a new primer on a piece of steel. Held the indent ball on the primer for 30 seconds using a 5/32” SS ball with 60 lbs load pressure
Measurement is the diameter of the indent, smaller numbers indication harder brass
Pistol Primers
0.30 CCI 500 SP, lot K27U41
0.32 – CCI 300 LP
0.32 CCI 350 LPM, lot G10R
0.38 – Federal GM150 Match LP
0.38 – Sellier & Bellot SP
0.38 – Sellier & Bellot LP
0.40 – Federal 155 LP Magnum
0.40 – Winchester - Western WLP
0.42 – Federal 150 LP
0.42 - Federal 100 SP
0.42 – Remington 1 ½ SP
0.44 – CCI 500 SP
0.48 – Remington 2 ½ LP
0.48 – CCI LP Lot 0264 – old CCI primers
Rifle Primers
0.24 – Herters 120 LR
0.26 – CCI BR-2 LR
0.28 – CCI 200 LR, lot H27M
0.28 Win-WLR, lot HNL347G
0.28 CCI 400 SR, lot CO1K
0.30 – Rem UMC Nickeled High Pressure LR
0.30 CCI 400 SR, lot E26U
0.32 – Federal 215 LR Magnum
0.34 – Remington 9 ½ LR
0.36 – Western 8 ½ LR
0.38 - Rem 7 ½ Bench Rest
0.38 – Alcan LR Magnum
0.40 – Federal 210 LR
0.40 – Winchester 115 Staynless LR
0.30 - Dynamit AG cal 6.34
0.32 - Dynamit AG cal 4.5
Note: All Lot Numbers were not recorded