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Nope, They sent them to the Ordnance Corp and they used some machine to rebore them..
New Zealand Defence Force to Replace Steyr AUG
- Thread starter pardus
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Nope, They sent them to the Ordnance Corp and they used some machine to rebore them..
pardus
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Hmm, I wonder how the fuck that works? :-/
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I've no idea.. I'm sure we have gunsmiths on the site to school us..
I found this but the site I found it on also says the barrel will also be of a larger caliber so fuck knows.
"
Specialized tooling and equipment are used. The machine tools look similar to an engine lathe and the cutting tools themselves are attached to steel tubing. The first step is counter-boring. This is akin to a roughing cut on a lathe and removes the bulk of the material from the bore leaving it a few thousandths of an inch under size. A special cutting tool called a counter-bore which is attached to a steel tube is pulled through the barrel. Cutting oil is pumped through this tube under high pressure and the steel chips are carried out the rear of the barrel by the flowing oil. Finish reaming is next. Feed rates and cutting speeds are adjusted and a finish reamer is substituted for the counter-bore and the bore is brought to final size using the same technique. The smooth bore is hand lapped and then placed in the rifling machine. The barrel is rifled by cutting a series a helical grooves in the bore. This is done using a single-point hook cutter. Each pass removes about one ten thousandth of an inch of steel (.0001") from one groove and then the barrel is indexed and another pass made in the location of the next groove. A six groove barrel would require six of these cycles to create grooves only one ten thousand of an inch deep. A typical groove in a small arms caliber is four thousandths (.004") deep, meaning that forty passes down each groove are necessary to bring it to final depth. When the grooves are cut to the proper depth the barrel is removed from the machine and hand lapped again. The lapping processes assure a very uniform bore dimension and a surface finish that is smooth and free from radial tool marks."
"
Specialized tooling and equipment are used. The machine tools look similar to an engine lathe and the cutting tools themselves are attached to steel tubing. The first step is counter-boring. This is akin to a roughing cut on a lathe and removes the bulk of the material from the bore leaving it a few thousandths of an inch under size. A special cutting tool called a counter-bore which is attached to a steel tube is pulled through the barrel. Cutting oil is pumped through this tube under high pressure and the steel chips are carried out the rear of the barrel by the flowing oil. Finish reaming is next. Feed rates and cutting speeds are adjusted and a finish reamer is substituted for the counter-bore and the bore is brought to final size using the same technique. The smooth bore is hand lapped and then placed in the rifling machine. The barrel is rifled by cutting a series a helical grooves in the bore. This is done using a single-point hook cutter. Each pass removes about one ten thousandth of an inch of steel (.0001") from one groove and then the barrel is indexed and another pass made in the location of the next groove. A six groove barrel would require six of these cycles to create grooves only one ten thousand of an inch deep. A typical groove in a small arms caliber is four thousandths (.004") deep, meaning that forty passes down each groove are necessary to bring it to final depth. When the grooves are cut to the proper depth the barrel is removed from the machine and hand lapped again. The lapping processes assure a very uniform bore dimension and a surface finish that is smooth and free from radial tool marks."
Bet you end up with the EF90 that Thales are putting together for the ADF.
If that happens I'm going to donkey punch an Australian hooker in the colon!
pardus
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Obviously Ive been out of the game in New Zealand for a long time now, but ideally HK417, realistically HK416. I'll also add that Ive never used either weapon, my opinion is based on what Ive read. Also the SCAR H seems like a great choice.
I finger fucked an LWRC IW at SHOT show one year and fell in love, it seems like an ideal M4 rifle, I'd make sure that was trialled too. That is my dream AR BTW.
I finger fucked an LWRC IW at SHOT show one year and fell in love, it seems like an ideal M4 rifle, I'd make sure that was trialled too. That is my dream AR BTW.
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