7.5x55 Load Data
by 
Pierre St. Marie

All load data printed herein should be approached with extreme caution. The rifles concerned, despite being very strong, are 50 years old. This data has all performed very well in the 1911 and k31 Schmidt Rubins. All of them printed groups of less than 2" at 100yds, and the majority were 1.5" and 1" or less. If you have "proven" load data to add, email mkntraks@digisys.net and we'll place it on this page for the membership. 

"Proven" means consistent 5 Round groups at 100yds with a minimum 5 separate targets used. 

Follow all safe reloading procedures and use this data at your own risk. 

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Two loads that tested out exceptionally well are:

Berger VLD 168gr........47.4gr of IMR4320

Berger VLD 175gr........45.8gr of 4350 

The last one consistently beat the GP11 for me at 300 to 500 yards. All three are winning loads, all things being equal.

"Equal" = ALL brass identical TTL.
ALL brass full length sized.
Seat depths on the VLDs are
exactly that of the GP11s @ 3.060
Sierra seat depth is 2.890
Seat depths are critical for consistency.

If you intend that these, or any loads, prove themselves, absolute consistency in every aspect of your loading procedures is mandatory. 

Not one iota of variance.

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The following loads have all been found to be quite accurate.

Remington PSPCL 165gr: 
N203...................40.5gr 
BLC2..................39gr 
3031....................36gr 
414......................43gr 
4064....................37gr 
4831....................47gr 
2520....................39gr 

Military Ball 173gr "pulled": 
414.......................43gr 
4064.....................39gr 
3031.....................35gr 
4350.....................38.1gr 
4064.....................39gr 
BLC2...................40gr 

Sierra Match king 168gr: 
4064.....................43.9gr 
4350.....................46.8gr 
4064.....................37gr 

Sierra Match king 175gr: 
4064......................42gr 
4350......................45.8gr 

Sierra 165gr HP/BT: 
4320......................44gr 
4064......................43.5 

Berger VLD168gr: 
4895......................44gr 

Nominal seat depths for the 1911: 
3.060" 

Nominal seat depths for the k31: 
2.890" 
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Addendum: Here are some recent additions to the list. 

1. Bullet: Norma 146gr. FJPBT
Powder: Vit. N140 49grs.
Primer: CCI 200
Case: RWS

2. Bullet: Sierra 165gr. SBT (2145)
Powder: 4350 ACCU 51.6grs. 
Primer: CCI 200
Case: Norma

3. Bullet: Hornady 168gr. BTHP (3050)
Powder: 47 grs. ROT R903
Primer: CCI BR2
Case: Norma

4. Bullet: Berger 168gr. HPBT/Moly
Powder: DuPont IMR-4320 47.4grs.
Primer: CCI 200
Case: RWS

5. Bullet: Lapua D-46 185 gr. (.308)
Powder: Vit. N160 50 grs. 
Primer: Norma LR
Case: Norma

6. Bullet: Hornady 190gr BTHP(3080)
Powder: Vit. N160 51.5grs. 
Primer: CCI 200
Case: Norma

7. Bullet: Hornady 190gr BTHP (3080)
Powder: ROT R907 46grs. 
Primer: RWS 5341
Case: Norma

Also see Pierre's Original Load Data Page