I just put a new 260 barrel on my remington 700. I am having to keep the oal length at 2.75 to get the bolt to close easily and the bullets to not have rifling marks on them. I am using resized fc 243 brass and sierra 140s. At 2.8 the bolt closes hard and the bullets have rifling marks on them. Will this be a problem or is it just a shorter chamber than most. Most oal lenghts I have seen for 260 range from 2.85 to 2.95.
260 oal
- Thread starter bschneiderheinze
- Start date
Re: 260 oal
Its all about the bullet. The Sierra SMKs are very forgiving on jump.
Load them back and rock on. Not worth loading longer unless your running a bullet like the Bergers.
Its all about the bullet. The Sierra SMKs are very forgiving on jump.
Load them back and rock on. Not worth loading longer unless your running a bullet like the Bergers.
Re: 260 oal
mine started life just like yours, now after 850 rds i have to load at 2.810 and accuracy is exceptional,
mine started life just like yours, now after 850 rds i have to load at 2.810 and accuracy is exceptional,
Re: 260 oal
I believe the important issue with rifling engagement is that you want them all to jump or all not to jump.
How far they jump can also be important, but I also think there are a lot of other factors that can override the effects, and that those need to be addressed before you can gain benefit from tuning jump distances.
Greg
I believe the important issue with rifling engagement is that you want them all to jump or all not to jump.
How far they jump can also be important, but I also think there are a lot of other factors that can override the effects, and that those need to be addressed before you can gain benefit from tuning jump distances.
Greg
