.550 Magnum - Manufacturer Loading Data

Bullet
Type
Primer
Case
Trim
Length
C.O.L.
 
Starting
Max
Diam.
Source
 
GR.:  600 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: 2495 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.790"
Powder:
108.0 gr
120.0 gr
Vel.:
2,210
2,455
Press.:
 
61,940
Starting Powder: 108.0 gr
Starting Velocity: 2,210
Starting Pressure:  
Max Powder: 120.0 gr
Max Velocity: 2,455
Max Pressure: 61,940
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  600 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: 2520 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.790"
Powder:
113.4 gr
126.0 gr
Vel.:
2,271
2,523
Press.:
 
60,840
Starting Powder: 113.4 gr
Starting Velocity: 2,271
Starting Pressure:  
Max Powder: 126.0 gr
Max Velocity: 2,523
Max Pressure: 60,840
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  Lead  RNFP 
(CPB)
Primer: WIN WLRM
Powder: 2015 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.735"
Powder:
86.4 gr
96.0 gr
Vel.:
1,872
2,080
Press.:
 
49,440
Starting Powder: 86.4 gr
Starting Velocity: 1,872
Starting Pressure:  
Max Powder: 96.0 gr
Max Velocity: 2,080
Max Pressure: 49,440
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  Lead  RNFP 
(CPB)
Primer: WIN WLRM
Powder: 5744 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.735"
Powder:
54.0 gr
 
Vel.:
1,504
24,740
Press.:
 
 
Starting Powder: 54.0 gr
Starting Velocity: 1,504
Starting Pressure:  
Max Powder:  
Max Velocity: 24,740
Max Pressure:  
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  BAND-S 
(Barnes)
Primer: WIN WLRM
Powder: 2015 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.735"
Powder:
93.6 gr
104.0 gr
Vel.:
1,989
2,210
Press.:
 
62,660
Starting Powder: 93.6 gr
Starting Velocity: 1,989
Starting Pressure:  
Max Powder: 104.0 gr
Max Velocity: 2,210
Max Pressure: 62,660
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: 2495 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.720"
Powder:
98.1 gr
109.0 gr
Vel.:
1,971
2,190
Press.:
 
64,810
Starting Powder: 98.1 gr
Starting Velocity: 1,971
Starting Pressure:  
Max Powder: 109.0 gr
Max Velocity: 2,190
Max Pressure: 64,810
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  SPHJ 
(Alaska Bullet Company)
Primer: WIN WLRM
Powder: 2495 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.780"
Powder:
107.1 gr
119.0 gr
Vel.:
2,061
2,290
Press.:
 
62,310
Starting Powder: 107.1 gr
Starting Velocity: 2,061
Starting Pressure:  
Max Powder: 119.0 gr
Max Velocity: 2,290
Max Pressure: 62,310
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  FN SLD 
(GS Custom Bullets)
Primer: WIN WLRM
Powder: 2495 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.790"
Powder:
102.6 gr
114.0 gr
Vel.:
2,041
2,268
Press.:
 
60,480
Starting Powder: 102.6 gr
Starting Velocity: 2,041
Starting Pressure:  
Max Powder: 114.0 gr
Max Velocity: 2,268
Max Pressure: 60,480
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: 2520 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.715"
Powder:
101.7 gr
113.0 gr
Vel.:
2,005
2,228
Press.:
 
61,410
Starting Powder: 101.7 gr
Starting Velocity: 2,005
Starting Pressure:  
Max Powder: 113.0 gr
Max Velocity: 2,228
Max Pressure: 61,410
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  BAND-S 
(Barnes)
Primer: WIN WLRM
Powder: TAC 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.735"
Powder:
105.3 gr
117.0 gr
Vel.:
2,083
2,314
Press.:
 
59,650
Starting Powder: 105.3 gr
Starting Velocity: 2,083
Starting Pressure:  
Max Powder: 117.0 gr
Max Velocity: 2,314
Max Pressure: 59,650
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: TAC 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.715"
Powder:
104.4 gr
116.0 gr
Vel.:
2,030
2,256
Press.:
 
61,370
Starting Powder: 104.4 gr
Starting Velocity: 2,030
Starting Pressure:  
Max Powder: 116.0 gr
Max Velocity: 2,256
Max Pressure: 61,370
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  SPHJ 
(Alaska Bullet Company)
Primer: WIN WLRM
Powder: TAC 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.780"
Powder:
107.1 gr
119.0 gr
Vel.:
2,051
2,279
Press.:
 
61,620
Starting Powder: 107.1 gr
Starting Velocity: 2,051
Starting Pressure:  
Max Powder: 119.0 gr
Max Velocity: 2,279
Max Pressure: 61,620
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  BAND-S 
(Barnes)
Primer: WIN WLRM
Powder: X-Terminator 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.735"
Powder:
97.2 gr
108.0 gr
Vel.:
2,060
2,289
Press.:
 
62,320
Starting Powder: 97.2 gr
Starting Velocity: 2,060
Starting Pressure:  
Max Powder: 108.0 gr
Max Velocity: 2,289
Max Pressure: 62,320
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  700 gr
Bullet Type:  FN 
(GS Custom Bullets)
Primer: WIN WLRM
Powder: X-Terminator 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.790"
Powder:
101.7 gr
113.0 gr
Vel.:
2,091
2,323
Press.:
 
60,900
Starting Powder: 101.7 gr
Starting Velocity: 2,091
Starting Pressure:  
Max Powder: 113.0 gr
Max Velocity: 2,323
Max Pressure: 60,900
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  800 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: 4064 
(Accurate)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.835"
Powder:
101.7 gr
113.0 gr
Vel.:
1,793
1,992
Press.:
 
61,150
Starting Powder: 101.7 gr
Starting Velocity: 1,793
Starting Pressure:  
Max Powder: 113.0 gr
Max Velocity: 1,992
Max Pressure: 61,150
Diameter: 0.550"
Source: Accurate 
 C 
 
GR.:  800 gr
Bullet Type:  RN SP 
(Hawk, Inc.)
Primer: WIN WLRM
Powder: Big Game 
(Ramshot)
Case: Jamison Brass & Ammunition
Trim Length:  
C.O.L.: 3.835"
Powder:
104.4 gr
116.0 gr
Vel.:
1,863
2,070
Press.:
 
61,150
Starting Powder: 104.4 gr
Starting Velocity: 1,863
Starting Pressure:  
Max Powder: 116.0 gr
Max Velocity: 2,070
Max Pressure: 61,150
Diameter: 0.550"
Source: Accurate 
 C 
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