Here's a couple questions for those "in the know"
<span style="font-weight: bold">Background:</span>
I'm building a 6.5-06, I have a bull barrel with no taper, 28" shilen and figured I could get a couple setbacks out of it, probably 2.
My reamer is a PTG, floating pilot. I own it, my dad or I will be cutting the chamber, more likely him since I don't usually have time to get to his shop.
I hear this thing will get me about 1200 rounds, maybe a touch more if I'm kind to the fire rate. I've begrudgingly accepted that. I now have heard that a setback won't buy me another barrel life, but maybe a few more rounds, it's not worth it the work. I thought I'd get 75% more life from the barrel, possibly another 150% if I set it back twice.
<span style="font-weight: bold">Questions:</span>
1) Since the reamer is mine and rechambering it will only cost me some sort of favor like helping my dad split wood one morning when I come to visit, is it true that a setback will extend a 1200 round barrel to 1500 rounds or can I get maybe 2k out of it with the setback?
2) Can I set it back more than once? I don't understand why not from a stress/erosion point, but I've been wrong with "edumakated guesses" before
3) I was also told (and this one seems really off to me) that a HSS reamer can't be used to set back a barrel because the throat and initial portion of the barrel will have hardened.
I know my dad has set back one of his friend's 22-250's and he had no issues with the carbide reamer, it didn't make any complaints. I've cut hardened steel with hand ground tools that I've made myself and other than being careful, they worked fine.
Can someone answer these for me?
<span style="font-weight: bold">Background:</span>
I'm building a 6.5-06, I have a bull barrel with no taper, 28" shilen and figured I could get a couple setbacks out of it, probably 2.
My reamer is a PTG, floating pilot. I own it, my dad or I will be cutting the chamber, more likely him since I don't usually have time to get to his shop.
I hear this thing will get me about 1200 rounds, maybe a touch more if I'm kind to the fire rate. I've begrudgingly accepted that. I now have heard that a setback won't buy me another barrel life, but maybe a few more rounds, it's not worth it the work. I thought I'd get 75% more life from the barrel, possibly another 150% if I set it back twice.
<span style="font-weight: bold">Questions:</span>
1) Since the reamer is mine and rechambering it will only cost me some sort of favor like helping my dad split wood one morning when I come to visit, is it true that a setback will extend a 1200 round barrel to 1500 rounds or can I get maybe 2k out of it with the setback?
2) Can I set it back more than once? I don't understand why not from a stress/erosion point, but I've been wrong with "edumakated guesses" before
3) I was also told (and this one seems really off to me) that a HSS reamer can't be used to set back a barrel because the throat and initial portion of the barrel will have hardened.
I know my dad has set back one of his friend's 22-250's and he had no issues with the carbide reamer, it didn't make any complaints. I've cut hardened steel with hand ground tools that I've made myself and other than being careful, they worked fine.
Can someone answer these for me?
