The outside diameter of the barrel on my 243 WSSM is 13.77 mm will there be enough shoulder to tighten a mod against if I have it threaded 1/2" unf.
You'll get away with a 21" barrel on this with no discernible loss of velocity or accuracy. I recently reduced the barrel on a 243 wssm and it shoots very well. If you measure the barrel back at 21" you may find you'll gain a slightly better dia for a good shoulder, as said, a spigot would work fine but isn't necessary if your shoulder suitable.
I would also opt for either a 14x1 or 1/2" unef 28 Tpi.
can someone explain about a spigot.
A good thread cut by some one who knows what they are doing does not need a spigot to align it, it aslo does not need a shoulder for the mod to butt up against, you cant screw a mod on any further then the thread length allows.
Ian.
A good thread cut by some one who knows what they are doing does not need a spigot to align it, it aslo does not need a shoulder for the mod to butt up against, you cant screw a mod on any further then the thread length allows.
Ian.