Head Space
#3
#5
Shoot! even my fire bolt had a face gas seal. and that was years ago.
#7
Backing a plug off also offers a possibility of a plug moving back and fourth a slitght amount in the threads each time you shoot. All plugs should be ran up snug in the bore. Just like you adjusting head space by turning out the firing pin bushing this is going to lead to mechanical stress on the threads at some point could cause metall fatigue... Nut and bolts with threads are ment to be snug or tight to prevent problems.
Most ML's are designed to stop gas cutting and gas seal at the nose of the breech plug. Backing the plug out will accelerate gas cuting on the BP and the face of the flange of the barrel.
#8
Fork Horn
Thread Starter
Join Date: Dec 2009
Posts: 195
Nowhere in my manual does it suggest backing off the BP. Only not to "over tighten". Sabotloader is correct in grease or tape on the face reducing blow back. That's been my experience so far. I've used bore butter on the threads, from time to time, when just hunting (1 or 2 shots) and have had no issues removing the plug. Extended range firing I use anit-sieze on the threads.
"i dont think you can adjust it"
So if modifying or having a "custom" plug made, it should be the same length as OEM?
"i dont think you can adjust it"
So if modifying or having a "custom" plug made, it should be the same length as OEM?
Last edited by smokey92; 12-25-2010 at 02:44 PM.
#9
Nontypical Buck
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
Have your custom made breech plug with primer of choice in place be made to this OAL or a couple thousandths longer.
#10
Do you have a headspace problem?I bought a .25 ACP breechplug from Cecil that was not bored deep enough.I used a counter bore to carefully cut the bore deeper until my breech closed properly with just a couple thousands squeeze.
Charlie
Charlie