While I was getting ready for my deer hunt, I sent off a bunch of parts to have his salt-bath nitride treatment. I absolutely love the finish of these parts! I sent everything but the receiver, rear sights and I forgot to send the bolt stop and the clip guide. I'll fit those in on the next batch.
The barrel is one of his 5R/20 barrels that I built my T44E4 receiver with and the rest of the parts are from my old M1A standard that I stripped off the action to build my T44E4. All the parts were used GI parts with the exception of the bolt. The Bolt was an arsenal repack. I built the rifle first, cut the chamber to desired headspace, polished the chamber and lapped the bolt lugs to the receiver.
Before...
After...
I'm guessing that if I run light to moderate loads of 125's through 168's, this barrel should give me match accuracy for about 7,000 rounds with a serviceable life of around 12,000 rounds. We'll see though. Current round count is around 115.
I'll do some comparisons with my M25 which has the un-treated 5R/20 barrel and the same headspace cut with the same reamer. I'll compare velocity, accuracy and cleaning results. I broke in my barrel and Jon said it was perfect before he treated the barrel. Since these parts came off a used M1A standard, the gas plug and piston already had rust and pitting before I sent them in. The process eats away all the rust from the surface, so there is a rough appearance on the parts that had rust. They were serviceable though and the rust should be stopped now.
I already installed the barrel and timed it perfectly. I'm just waiting on an operating rod guide and a hammer pin to finish the rifle again.
Tony.
The barrel is one of his 5R/20 barrels that I built my T44E4 receiver with and the rest of the parts are from my old M1A standard that I stripped off the action to build my T44E4. All the parts were used GI parts with the exception of the bolt. The Bolt was an arsenal repack. I built the rifle first, cut the chamber to desired headspace, polished the chamber and lapped the bolt lugs to the receiver.
Before...
After...
I'm guessing that if I run light to moderate loads of 125's through 168's, this barrel should give me match accuracy for about 7,000 rounds with a serviceable life of around 12,000 rounds. We'll see though. Current round count is around 115.
I'll do some comparisons with my M25 which has the un-treated 5R/20 barrel and the same headspace cut with the same reamer. I'll compare velocity, accuracy and cleaning results. I broke in my barrel and Jon said it was perfect before he treated the barrel. Since these parts came off a used M1A standard, the gas plug and piston already had rust and pitting before I sent them in. The process eats away all the rust from the surface, so there is a rough appearance on the parts that had rust. They were serviceable though and the rust should be stopped now.
I already installed the barrel and timed it perfectly. I'm just waiting on an operating rod guide and a hammer pin to finish the rifle again.
Tony.
