Originally Posted by
Zero333
Factory ammo will be slow. Rem Corlokt made 2,850 fps. 58gr Superformance ammo made 3,640 fps . Hornady 100gr BTSP custom made 2,760. Win. 55gr BalSilTip made 3,650 fps. 95gr Fed fusion made 2,735 in the cold and 2,822 in the warm.
But handloads should get more speed...
I made up to 3,219 fps with 90gr Berger BT, Win. brass, BR2 sparkplugs and H-4831sc (Went up to 48.2gr).
Ran up to 47gr of H1000 with 105amax and made 2,950.
Also ran up to 45.8gr of H-4831sc with the 105amax and made 2,921 fps. Best accuracy was at 43gr around 2,750 fps.
75gr vmax over 42gr of Varget made 3,363 fps.
This was in a 22" mod 11 .243win.
These are the max I went up to so be careful. Reduce, work up, look for best accuracy and have fun !
Winchester brass takes more abuse than lapua and handles higher pressure much better. At least from my experience in the 243w, 308w and 7mm08.
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