100gr bullets for .308? twist rate?
- Thread starter IM_Lugger
- Start date
- Location
- Hillbilly shack in the boonies
I got a 13 twist in my 308 target gun, and use 168's, and 155's , if that helps
The 100 grain bullets may shoot accurate enough, in spite of some extra spin. What some have pointed out to you is that 100 grain bullets are too light for a 30 calibre rifle. They would lose speed much too fast to be very practical and the wind may blow them into the next county.
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
They'll work just fine, especially at 100 yards.
Here's everything "wrong" with what you're doing:
- your rifle's twist quite a bit faster than it needs to be
- they're probably not good hunting bullets
- they're probably not match-grade target bullets
- they'll be blown about by the wind more than a 150+ grain bullet (a 10mph wind that blows a 165 grain Hornady Spire point bullet 0.9" sideways at 100 yards, will blow a 100 grain Hornady bullet 2.4" sideways; not a big deal either way, especially since 10mph is a lot more wind than it sounds like!)
- the throat in your rifle is almost certainly "too long", in that you won't be able to load ammo so that your bullet is touching or nearly touching your rifling.
But if none of these is a deal-killer for you, have at it; they'll all safely go "bang", and zip right through whatever target you staple up at 100 yards
(BTW ".30 BR" is a benchrest cartridge, used for short range benchrest shooting for score. Picture a 2/3-length .308 Winchester).
Here's everything "wrong" with what you're doing:
- your rifle's twist quite a bit faster than it needs to be
- they're probably not good hunting bullets
- they're probably not match-grade target bullets
- they'll be blown about by the wind more than a 150+ grain bullet (a 10mph wind that blows a 165 grain Hornady Spire point bullet 0.9" sideways at 100 yards, will blow a 100 grain Hornady bullet 2.4" sideways; not a big deal either way, especially since 10mph is a lot more wind than it sounds like!)
- the throat in your rifle is almost certainly "too long", in that you won't be able to load ammo so that your bullet is touching or nearly touching your rifling.
But if none of these is a deal-killer for you, have at it; they'll all safely go "bang", and zip right through whatever target you staple up at 100 yards
(BTW ".30 BR" is a benchrest cartridge, used for short range benchrest shooting for score. Picture a 2/3-length .308 Winchester).
