Originally Posted by woods
They changed the 280 remington specs also??!!
Next thing you know they will change the 30-06!
Here are the SAAMI drawings for the 280AI, before and after
and here is the drawing I have for the 280 remington
If I do the math 2.540"-.341"=2.199" to the neck/shoulder junction on the 280 remington
That means 2.199"-2.1741"=.0149" crush fit at the neck/shoulder using 280 remington brass in a new SAAMI 280AI chamber
If you look at Nosler 280AI brass thats posted in their manual. the case body length is 2.097 and length to the start of the neck is 2.182 and case length is 2.525.
On a fired case Nolser 280AI the case body lenght is 2.100 and the length to the start of the neck is 2.184 and case length is 2.520.
I'm not saying the article in Gun talk is wrong but their SAAMI spec doesn't match Nolser brass they have the same body length but not to the start of the neck or case length and the reamer my gunsmith used was to the Nolser spec brass Nolser manual was printed 2007.
If anyone looks at Nolser manaul #5 printed 2002 and look at their spec on the 280AI, it's pretty close to what Gun Talk calls SAAMI 280AI they have the case to start of neck 2.175 length and body length is 2.090 and case lenght is 2.525.
Myself I think Gun Talk got acouple number mixed up mainly the case length to the neck and the body length is off?