You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Trimming brass
- Thread starter 338lm
- Start date
How much under your chamber length do you trim your brass?
For example, if I have a .308 chamber length of 2.032", what is the max length I should trim my brass to?
I trim .010" under
A
abintx
Guest
From a max known/measured length ...
20 Thousandths. Max to: 2.012. I would trim from 2.022 to 2.012. That would give me a 0.010 measure of safety from 2.022 to 2.032. Art
How much under your chamber length do you trim your brass?
For example, if I have a .308 chamber length of 2.032", what is the max length I should trim my brass to?
20 Thousandths. Max to: 2.012. I would trim from 2.022 to 2.012. That would give me a 0.010 measure of safety from 2.022 to 2.032. Art
Butch Lambert
Active member
On my PPC it is .005, but I keep a close watch on it. Don't want the carbon ring forming there.
Butch
Butch
Kirk Ethridge
New member
an interesting note on trimming
Though not every rifle does this, some require trimming after every loading if possible.
For example, the 6xc i have is probably my best shooting rifle period. what keeps it consistant is trimming the brass..i've built 2 6xc's that shoot really well and both require trimming after every shot to maintain best accuracy.
the brass i'm using will grow up to .005 on 1 shot. We quit shooting 2nd, 3rd ect. shots because of accuracy deterioration. (In other words. we trim after every shot). I say we, because my shooting buddy David's rifle acts the same. His on a Bat DS action, mine on a Viper.
just something to keep in mind?
Kirk
Though not every rifle does this, some require trimming after every loading if possible.
For example, the 6xc i have is probably my best shooting rifle period. what keeps it consistant is trimming the brass..i've built 2 6xc's that shoot really well and both require trimming after every shot to maintain best accuracy.
the brass i'm using will grow up to .005 on 1 shot. We quit shooting 2nd, 3rd ect. shots because of accuracy deterioration. (In other words. we trim after every shot). I say we, because my shooting buddy David's rifle acts the same. His on a Bat DS action, mine on a Viper.
just something to keep in mind?
Kirk
B
BJS6
Guest
Kirk,
How much shoulder bump are you giving the brass ?
Bryce
How much shoulder bump are you giving the brass ?
Bryce
Kirk Ethridge
New member
shoulder bump
My shoulder bump is .0005... just as little as possible. It really suprises me tha this rifle behaves like this in regards to brass growth. the shoulder is 30 degrees just like my ppc's which grow very little. I suppose the body taper of the xc is what contributes to brass flow. The other day on 5 pieces i measured one of them had almost no growth, the max was .005 on one with the others in between 3 & 5.
Kirk
My shoulder bump is .0005... just as little as possible. It really suprises me tha this rifle behaves like this in regards to brass growth. the shoulder is 30 degrees just like my ppc's which grow very little. I suppose the body taper of the xc is what contributes to brass flow. The other day on 5 pieces i measured one of them had almost no growth, the max was .005 on one with the others in between 3 & 5.
Kirk