| NEVER Exceed the
Loads Listed Here | |
| Cartridge Information | Case: | Winchester | | | Barrel Length: | 24" | | | Twist: | 1:10" | | | Trim Length: | 2.035" | | | Primer: | Winchester LR | | | | | | | | | 243 Winchester Cartridge Load Data | Starting Loads
| Maximum Loads
| | Bullet Weight (Gr.) | Powder | Bullet Dia. | C.O.L. | Grs. | Vel. (ft/s) | Pressure | Grs. | Vel. (ft/s) | Pressure | | 55 GR. NOS BT | IMR 4320 | .243" | 2.650" | 40.0 | 3603 | 48,600 CUP | 45.5 | 3876 | 49,800 CUP | | 55 GR. NOS BT | IMR 4064 | .243" | 2.650" | 39.5 | 3554 | 41,300 CUP | 44.0 | 3875 | 51,200 CUP | | 55 GR. NOS BT | IMR 4895 | .243" | 2.650" | 40.0 | 3599 | 42,100 CUP | 44.0 | 3877 | 50,200 CUP | | 55 GR. NOS BT | IMR 3031 | .243" | 2.650" | 37.0 | 3520 | 38,300 CUP | 40.5 | 3864 | 50,900 CUP |
| | 58 GR. HDY V-MAX | IMR 4320 | .243" | 2.600" | 40.5 | 3448 | 41,800 CUP | 44.8 | 3822 | 50,100 CUP | | 58 GR. HDY V-MAX | IMR 4064 | .243" | 2.600" | 39.6 | 3388 | 39,400 CUP | 44.0 | 3780 | 50,200 CUP | | 58 GR. HDY V-MAX | IMR 4895 | .243" | 2.600" | 40.5 | 3551 | 42,300 CUP | 44.7 | 3819 | 50,000 CUP | | 58 GR. HDY V-MAX | IMR 3031 | .243" | 2.600" | 36.5 | 3467 | 40,700 CUP | 41.0 | 3815 | 50,500 CUP |
| | 60 GR. SIE HP | IMR 4320 | .243" | 2.600" | 40.0 | 3431 | 42,500 CUP | 44.4 | 3716 | 50,500 CUP | | 60 GR. SIE HP | IMR 4064 | .243" | 2.600" | 40.0 | 3476 | 43,600 CUP | 43.8 | 3766 | 50,400 CUP | | 60 GR. SIE HP | IMR 4895 | .243" | 2.600" | 39.6 | 3464 | 43,500 CUP | 43.3 | 3785 | 50,800 CUP | | 60 GR. SIE HP | IMR 3031 | .243" | 2.600" | 36.8 | 3448 | 43,000 CUP | 40.5 | 3714 | 50,500 CUP |
| | 65 GR. HDY V-MAX | IMR 4320 | .243" | 2.600" | 40.5 | 3448 | 43,800 CUP | 43.9 | 3670 | 49,500 CUP | | 65 GR. HDY V-MAX | IMR 4064 | .243" | 2.600" | 40.0 | 3415 | 43,000 CUP | 43.4 | 3698 | 50,000 CUP | | 65 GR. HDY V-MAX | IMR 4895 | .243" | 2.600" | 38.5 | 3392 | 42,300 CUP | 42.7 | 3664 | 50,600 CUP | | 65 GR. HDY V-MAX | IMR 3031 | .243" | 2.600" | 36.5 | 3397 | 43,800 CUP | 39.8 | 3624 | 50,200 CUP |
| | 70 GR. SPR HP | IMR 4320 | .243" | 2.625" | 38.5 | 3325 | 43,800 CUP | 42.5 | 3541 | 50,300 CUP | | 70 GR. SPR HP | IMR 4064 | .243" | 2.625" | 38.5 | 3316 | 43,700 CUP | 42.5 | 3541 | 50,000 CUP | | 70 GR. SPR HP | IMR 4895 | .243" | 2.625" | 38.5 | 3349 | 44,300 CUP | 42.6 | 3558 | 50,000 CUP | | 70 GR. SPR HP | IMR 3031 | .243" | 2.625" | 35.5 | 3218 | 41,500 CUP | 39.0 | 3485 | 51,100 CUP |
| | 75 GR. HDY HP | IMR 4320 | .243" | 2.640" | 37.7 | 3180 | 43,500 CUP | 41.5 | 3420 | 50,600 CUP | | 75 GR. HDY HP | IMR 4064 | .243" | 2.640" | 37.5 | 3183 | 43,300 CUP | 41.2 | 3419 | 50,300 CUP | | 75 GR. HDY HP | IMR 4895 | .243" | 2.640" | 37.5 | 3198 | 44,200 CUP | 41.7 | 3423 | 50,400 CUP | | 75 GR. HDY HP | IMR 3031 | .243" | 2.640" | 33.2 | 3061 | 41,800 CUP | 36.7 | 3298 | 49,800 CUP |
| | 80 GR. SIE BTSP | IMR 4320 | .243" | 2.635" | 37.0 | 3132 | 44,000 CUP | 40.5 | 3339 | 50,600 CUP | | 80 GR. SIE BTSP | IMR 4064 | .243" | 2.635" | 37.5 | 3141 | 45,000 CUP | 41.0 | 3320 | 50,800 CUP | | 80 GR. SIE BTSP | IMR 4895 | .243" | 2.635" | 36.5 | 3094 | 43,300 CUP | 40.2 | 3290 | 50,300 CUP |
| | 85 GR. BAR XBTC | IMR 4831 | .243" | 2.560" | 44.2 | 2886 | 40,700 CUP | 48.5C | 3183 | 49,200 CUP | | 85 GR. BAR XBTC | IMR 4350 | .243" | 2.560" | 43.0 | 2959 | 42,000 CUP | 47.0C | 3229 | 50,100 CUP | | 85 GR. BAR XBTC | IMR 4320 | .243" | 2.560" | 36.5 | 3011 | 45,200 CUP | 39.9 | 3159 | 49,500 CUP | | 85 GR. BAR XBTC | IMR 4064 | .243" | 2.560" | 36.5 | 2974 | 43,500 CUP | 40.0 | 3168 | 50,400 CUP | | 85 GR. BAR XBTC | IMR 4895 | .243" | 2.560" | 36.5 | 2949 | 43,000 CUP | 40.6 | 3182 | 50,000 CUP |
| | 90 GR. SPR SP | IMR 7828 | .243" | 2.625" | 45.0 | 2950 | 46,100 CUP | 48.0C* | 3130 | 50,600 CUP | | 90 GR. SPR SP | IMR 4831 | .243" | 2.625" | 40.5 | 2858 | 43,700 CUP | 43.9 | 3050 | 50,700 CUP | | 90 GR. SPR SP | IMR 4350 | .243" | 2.625" | 39.5 | 2856 | 42,700 CUP | 43.0 | 3096 | 50,800 CUP | | 90 GR. SPR SP | IMR 4064 | .243" | 2.625" | 33.5 | 2796 | 41,600 CUP | 37.0 | 3020 | 50,200 CUP | | 90 GR. SPR SP | IMR 4895 | .243" | 2.625" | 33.5 | 2815 | 41,800 CUP | 36.9 | 3033 | 50,200 CUP |
| | 95 GR. NOS PART | IMR 7828 | .243" | 2.650" | 41.5 | 2780 | 42,300 CUP | 45.8C* | 3030 | 50,600 CUP | | 95 GR. NOS PART | IMR 4831 | .243" | 2.650" | 39.5 | 2793 | 43,900 CUP | 42.8 | 2985 | 50,200 CUP | | 95 GR. NOS PART | IMR 4350 | .243" | 2.650" | 38.0 | 2792 | 43,200 CUP | 41.8 | 2993 | 50,200 CUP | | 95 GR. NOS PART | IMR 4064 | .243" | 2.650" | 33.0 | 2745 | 43,500 CUP | 36.5 | 2967 | 51,100 CUP | | 95 GR. NOS PART | IMR 4895 | .243" | 2.650" | 32.0 | 2687 | 41,800 CUP | 35.5 | 2908 | 50,400 CUP |
| | 100 GR. SPR BTSP | IMR 7828 | .243" | 2.650" | 42.5 | 2796 | 43,700 CUP | 46.0C* | 3009 | 51,100 CUP | | 100 GR. SPR BTSP | IMR 4831 | .243" | 2.650" | 39.2 | 2733 | 43,500 CUP | 43.0 | 2947 | 50,800 CUP | | 100 GR. SPR BTSP | IMR 4350 | .243" | 2.650" | 38.5 | 2760 | 43,000 CUP | 42.0 | 2958 | 50,100 CUP | | 100 GR. SPR BTSP | IMR 4064 | .243" | 2.650" | 33.0 | 2672 | 42,200 CUP | 36.5 | 2902 | 51,100 CUP | | 100 GR. SPR BTSP | IMR 4895 | .243" | 2.650" | 32.8 | 2683 | 42,300 CUP | 35.7 | 2862 | 50,100 CUP |
| | 105 GR. HDY A-MAX | IMR 7828 | .243" | 2.760" | 40.6 | 2721 | 44,500 CUP | 44.0C | 2894 | 50,300 CUP | | 105 GR. HDY A-MAX | IMR 4831 | .243" | 2.760" | 38.0 | 2661 | 43,700 CUP | 41.5 | 2870 | 50,800 CUP | | 105 GR. HDY A-MAX | IMR 4350 | .243" | 2.760" | 36.7 | 2648 | 43,000 CUP | 40.2 | 2870 | 50,800 CUP |
| | 107 GR. SIE BTHP | IMR 7828 | .243" | 2.850" | 40.0 | 2675 | 43,000 CUP | 43.5 | 2878 | 50,100 CUP | | 107 GR. SIE BTHP | IMR 4831 | .243" | 2.850" | 37.5 | 2662 | 43,900 CUP | 40.9 | 2844 | 50,400 CUP | | 107 GR. SIE BTHP | IMR 4350 | .243" | 2.850" | 36.5 | 2661 | 42,100 CUP | 39.8 | 2853 | 50,600 CUP | C = Compressed Charge * Max loads that show an asterisk following the "C" for compressed load will not fit with standard IMR7828. Reduce by 4%. |
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