So if I load at 1800 will I be all right, if so what would my most effective range
jr - as long as your eyes and fingers are in good shooting condition - 1800 fps will get the bullet to a 1000yd target (shoot it on a calm day though because a 300gr has a small ballistics coefficient
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Here's some recipes for you
http://data.hodgdon.com/main_menu.aspJacketed Bullets
Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure
300 GR. SIE HP IMR IMR 4198 .458" 2.525" 54.0 2253 31,800 CUP 58.5C 2450 43,000 CUP
300 GR. SIE HP Hodgdon H4198 .458" 2.525" 59.5 2394 37,300 CUP 63.0 2532 50,000 CUP
NEVER EXCEED MAXIMUM LOADS
Cast Bullets
Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure
300 GR. CAST LFP Hodgdon Varget .458" 2.465" 45.0 1599 17,800 CUP 55.0 1880 20,600 CUP
300 GR. CAST LFP IMR IMR 4064 .458" 2.465" 49.8 1685 19,400 CUP 53.0 1813 21,800 CUP
300 GR. CAST LFP IMR IMR 4895 .458" 2.465" 47.5 1590 16,500 CUP 50.5 1703 20,400 CUP
300 GR. CAST LFP Hodgdon H4895 .458" 2.465" 45.0 1572 14,400 CUP 51.0 1703 15,500 CUP
300 GR. CAST LFP IMR IMR 3031 .458" 2.465" 51.7 1839 18,700 CUP 55.0 1995 24,900 CUP
300 GR. CAST LFP Hodgdon Benchmark .458" 2.465" 54.0 1788 18,300 CUP 58.0 1940 21,900 CUP
300 GR. CAST LFP IMR IMR 4198 .458" 2.465" 33.8 1649 15,500 CUP 36.0 1752 20,200 CUP
300 GR. CAST LFP Hodgdon H4198 .458" 2.465" 30.0 1390 14,400 CUP 35.5 1641 16,100 CUP
300 GR. CAST LFP IMR Trail Boss .458" 2.465" 14.0 1199 19,400 CUP 16.5 1285 20,900 CUP