drgondog
Major
Hi Drgondog,
Thanks for the compliment. Regarding 1 MOA rifles, M1, M1A, AR-15 can be tuned rather easily, but I really don't know any methods for SKS, AK, FAL, HK, Mauser 98, and the like. That doesn't mean that I own these rifles, but if one should come along at a good price legally, I would not turn it down even if the gun isn't expected to shoot MOA or better.
I have never had the SKS/AK/FAL so can't comment.
M98/bolt action FN, M700, M70, etc are all easy to tune - but as you know getting below 1 MOA requires starting with a barrel that will get you there.
You already do the important stuff - but a quick synopsis re: what I do -
is what every decent custom rifle maker does. Blueprint the bolt face, make sure the lugs all make the contact, check the chamber for concentricity/ head space, check the firing pin and spring, check the crown and the bore. I like Sako extractors for the Mauser/FN/M70.
For the bolt action stock I will play around with fore end tip pressure
. If that shows enough improvement to drop to 1 MOA, I generally stop.
If not I Free float and try. If this sin't good enough then I bed it.
If that doesn't work - off to someone who likes it more than I do.
I have a couple of top bench rest shooters in Dallas (Prachyl/Berger)that have similar concerns to expander balls on the old resize dies - but at the end of the day they are neck size devotees.
Regarding some esoteric aspects of reloading, I really hate the expander balls that are used with typical rifle full length sizers. I bought some Redding S dies along with a couple bushings in the expected range of neck diameters for .308 Winchester in an attempt to full length size the case without the expander ball. I have not had the chance to try them yet. Another method would be an attempt to combine the Lee Collet set with some other method for reducing only the body of the case and a shoulder bump die. When you are using a Dillon 550 to just process rifle cases, there are quite a few possibilities with dies in each station.
- Ivan.
I may have to break down and get a 550