Dflyfish what do you use for your headspace guage?
Shep
Some other sources and references for you to argue with. Besides me...I not arguing just stating facts that are true. I've been doing Ackley Chambers for over 30 yrs. Besides your the one saying it's wrong. I have physical proof and I've showed you 2 references that physically sHow you they are the same. I know for a fact that if you chamber a barrel with the Sammi guage and another with the standard go as a no go that those Chambers are in fact the same. How many of each have you chambered and measured. How many Ackley Reamers and guages do you own. How many different Chambers have you measured of each. Obviously none. It's ok to think your right. You looked at a print comparing an apple to an orange and your right. They are both fruit. But in the real hands on physical world they are the same depth. The only way they could be slightly off is if you use a no go on a Reamer with a different neck diameter. And that would only change it a thou of 2. Be glad to have you come to the shop and you bring your Reamer and guage and I will do 2 chambers. Sammi and an original AI. Actually I can show you 4 280ai rifles done to PO spec. What's really weird is nosler 280ai brass fits them all perfectly. They should absolutely be .014 short and then grow .014 when fired. They do not.
Really it can't get any simpler than dropping both guages into a case headspace tool and see if one is .014 different. Hard physical proof. They are not different as shown in the article and video. Wonder how they got that solid steel guage to go in that hole .014 deeper. Explain that. But your right. I'm wrong. Oh well I can't win them all. And yet you probably have never even measured one or 50 of them. Or have the tools to do so.
Shep
So if the headspace dimension as you cut it with your tools and machines doesn't comply with the numbers on the design Reamer print, the Reamer print is wrong, and your chamber is correct? If your chamber doesn't comply with the numbers on a SAAMI chamber print, the SAAMI chamber print is flawed.The proof is the guage in the chamber not the numbers on the Reamer print.
Shep
I've been doing Ackley Chambers for over 30 yrs.
Good luck trying to find those books. I bought mine back in the late 80's. I tried to find some a friend a few years ago with no luck.A worthwhile read: "Handbook for Shooters and Reloaders", consists of 2 books written by P.O. Ackley. It doesn't address the new SAAMI spec .280AI, but it is "the" reference when it comes to all the other Ackley Improved cartridges. Here's another read; https://www.redding-reloading.com/tech-line-a-tips-faqs/133-280-changes I normally don't go to places like reamer rental companies when I need to compare prints. Those may be correct, but to be honest I didn't even look at 'um. I go to www.saami.org for industry standards. The 'traditional' .280 Ackley won't be listed there as it is a 'wildcat'. If I need a print of a 'wildcat' I go to JGS or Dave Manson. PTGs' customer service is so poor I'd trust nothing provided by them. With the current unavailability of all things related to reloading I would opt for the SAAMI unless you are willing to spend for a custom made die set. By the way, there is no 'factory' .280 Remington on the shelf, either,,, to fire form in a 'traditional' chamber. I'm done here, done all I can do on this subject.....
I stand corrected. Amazon seems to have some. It seems that some were reprinted in 2013 and it is also available on kindle, but I don't know if it has both volumes. Oh, modern marvels.Good luck trying to find those books. I bought mine back in the late 80's. I tried to find some a friend a few years ago with no luck.
Look again, it has been reprinted. The originals are now collectors.Good luck trying to find those books. I bought mine back in the late 80's. I tried to find some a friend a few years ago with no luck.