January 01, 2004

WSM and WSSM ballistic Comparison Chart

Caliber	Bullet Weight	Overall Cartridge Length	Muzzle Velocity	Trajectory at 300 yds(100yds zero)	Muzzle Energy(Ft. Lbs.)
Ballistics Comparison for 270
270 WSM	130 grains	2.860"	3,275 fps	-9.02	3,096
270 Win.	130 grains	3.340"	3,050 fps	-10.89	2,685
270 Wby. Mag.	130 grains	3.295"	3,200 fps	-9.57	2,955
Ballistics Comparison for 7MM
7mm WSM	140 grains	2.860"	3,225 fps	-9.33	3,233
7mm Rem. Mag.	140 grains	3.290"	3,100 fps	-10.16	2,987
Ballistics Comparison for 300
300 WSM	180 grains	2.860"	2,970 fps	-11.8	3,526
300 Win. Mag.	180 grains	3.340"	2,960 fps	-11.8	3,503
300 H&H	180 grains	3.600"	2,880 fps	-13.2	3,316
Ballistics Comparison for 223
223 WSSM	55 grains	2.36"	3,850 fps	-4.4	1,810
223 Rem.	55 grains	2.26"	3,240 fps	-10.3	1,282
22-250 Rem.	55 grains	2.35"	3,680 fps	-7.3	1,654
Ballistics Comparison for 243
243 WSSM	55 grains	2.36"	4,060 fps	-3.9	2,013
243 WSSM	95 grains	2.36"	3,250 fps	-5.7	2,258
243 Win.	55 grains	2.71"	3,910 fps	-6	1,867
243 Win.	95 grains	2.71"	3,100 fps	-10.3	2,021
Ballistics Comparison for 25
25 WSSM	85 grains	2.36"	3470 fps	-8.2	2,273
25 WSSM	115 grains	2.36"	3060 fps	-10.6	2,392
25 WSSM	120 grains	2.36"	2990 fps	-12.2	2,383
25-06 Rem.	85 grains	3.250"	3470 fps	-8.2	2,273
25-06 Rem.	115 grains	3.250"	3060 fps	-10.6	2,392
25-06 Rem.	120 grains	3.250"	2990 fps	-12.2	2,383
All specifications approximate and subject to change depending on ammunition manufacturer, barrel length, specific load and conditions. For more ballistic details visit the Winchester Ammunition website at: www.winchester.com.