300 Remington Ultra Magnum

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Handload data

Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may be excessive in others. All loads should be reduced by 5% as a starting point for development where cartridges have greater than 40 grains in capacity and 10% for cartridges with less than 40 grain capacity following safe handloading practices as represented in established mainstream reloading manuals. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

300 Remington Ultra Magnum – MAP 65KPSI
Firearm Remington Model 700 AWR
Barrel Length 26.00″
Max Case Length 2.850″ +0.000″/-0.020″
Min – Max COL 3.450″ – 3.600″
Primer CCI 250 (LRM)
Bullet Diameter 0.3090″ +0.000″/-0.0030″
Reloading Dies Hornady

 

Bullet Type Bullet
Weight

Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder
Charge

Grains
Muzzle
Velocity

fps
Muzzle
Energy

ft/lbs
Barnes TTSX
130
103.7
3.545
Re 25
98.5
3551
3639
Barnes TTSX
130
103.7
3.545
IMR 7828
96.0
3572
3683
Barnes TTSX
130
103.7
3.545
RS Magnum
103.0
3611
3764
Hornady SP
130
107.4
3.520
4000-MR
94.5
3526
3589
Hornady SP
130
107.4
3.520
Re 25
102.0
3578
3696
Hornady SP
130
107.4
3.520
IMR 7828
98.5
3592
3724
Winchester PP
150
106.9
3.560
Re 25
98.0
3384
3813
Winchester PP
150
106.9
3.560
H1000
100.5
3370
3783
Winchester PP
150
106.9
3.560
IMR 7828
95.0
3413
3879
Sierra GameKing
165
104.6
3.575
Re 25
95.0
3245
3859
Sierra GameKing
165
104.6
3.575
H1000
98.0
3274
3928
Sierra Gameking
165
104.6
3.575
IMR 7828
92.0
3292
3976
Barnes TTSX 168 100.3 3.600 Re 25
92.0
3246
3930
Barnes TTSX 168 100.3 3.600 H1000
94.5
3238
3912
Barnes TTSX 168 100.3 3.600 RS Magnum
96.0
3271
3991
Berger VLD Hunting 175 102.8 3.600 Re 25
93.0
3205
3991
Berger VLD Hunting 175 102.8 3.600 Retumbo
100.0
3244
4089
Berger VLD Hunting 175 102.8 3.600 RS Magnum
97.0
3231
4056
Sierra ProHunter
180
103.5 3.600 Re 25
93.0
3173
4024
Sierra ProHunter
180
103.5 3.600 H1000
96.0
3186
4056
Sierra ProHunter
180
103.5 3.600 Retumbo
100.0
3213
4127
Nosler Partition
180
102.8
3.600
H1000
95.5
3190
4066
Nosler Partition 180 102.8 3.600 Retumbo 99.5
3218
4139
Nosler Partition 180 102.8 3.600 RS Magnum
96.5
3186
4057
Hornady Interlock
190
100.8
3.575
Re 25
90.0
3076
3993
Hornady Interlock 190 100.8 3.575 Retrumbo
97.0
3122
4113
Hornady Interlock 190 100.8 3.575 IMR 7828
87.0
3100
4054
Hornady ELD-X 200 98.7 3.595 Re 22 86.0 3087 4233
Hornady ELD-X 200 98.7 3.595 Retumbo 94.0 3151 4410
Hornady ELD-X 200 98.7 3.595 RS Magnum 91.0 3134 4363
Hornady ELD-X 212 97.4 3.600 Re 33 97.0 3084 4478
Hornady ELD-X 212 97.4 3.600 Retumbo 92.0 3067 4429
Hornady ELD-X 212 97.4 3.600 Norma 217 92.0 3073 4446
Hornady ELD-X 220 96.1 3.600 Re 33 96.0 3079 4632
Hornady ELD-X 220 96.1 3.600 Retumbo 91.0 3032 4492
Hornady ELD-X 220 96.1 3.600 Norma 217 91.0 3019 4454
Hornady Interlock RN 220 102.0 3.575 Re 33 100.0 3024 4468
Hornady Interlock RN 220 102.0 3.575 Retumbo 93.0 3002 4404
Hornady Interlock RN 220 102.0 3.575 Norma 217 94.0 3036 4504

 

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