Heaviest caliber weight for 1:9 1/8 twist and shortest barrel length for 243 win

[joe.grey]

Its a lighter bullet but im running 55gr nosler ballistic tips over varget and get just under moa. Rifle is a mossberg 100 atr

I have had extensive experience with the 9.125" twist in Remington 6mm barrels.

They will generally stabilize flat based bullets up to 105 grains just fine.

VLD bullets like the Berger and Lapua match types, you will have to drop back to 90/95 grain bullets to get them to stabilize dependably.

Any bullet design 95 grains or under will work just fine.

Regards, Dave.

Before my Stevens 200 got a big fat target barrel I was shooting Berger 90 gr BT Target over H4831 with reasonable results. That 1: 9.25" twist pencil barrel was cut down to 18.5 inches.

I have the same rifle. I shoot 90 grain Lapua Scenars over 44g of H4350. Loaded .020 off the lands. Very accurate.

Thank you all, great info!

 

[caveman741]

Ive gotten bother Berger and Hornsby bthp to shoot out of my .243 AI very well with reloader 22