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I am looking for actual brass spec for the 7x57 A I. I thought the round was SAMMI approved but can not find the information I am looking for. Anyone load the A I version? I have a custom rifle and has a modern day action (Rem 700) so pressure is not a factor . The fire formed length of the brass is what I am wanting. Thanks Daniel
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There's no standard yet that I know of. ![[Linked Image from i.postimg.cc]](https://i.postimg.cc/Qdk2G60G/7-mauser-AI.jpg)
Last edited by MickinColo; 07/08/23.
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MinCo:
Is that the RCBS Improved? I think the AI has a 40 degree shoulder. I could, however, be reading the print wrong.
RM
"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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I am not sure what cartridge the drawing is but the total length of the brass is far greater that what I get using new brass and fire forming. Thanks Daniel
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It's a QL drawing and it has a 40 degree shoulder. It's what QL makes predictions on. A RCBS Improved?? there is the problem, no standards.
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Yes, I see it now. My mistake.
"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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I am not smart enough to ask the right question but I am almost positive that the 7x57 A. I. is SAMMI approved, I just can't find out where to look. The majority of the once fired brass will be about 2.225 t0 2.235. Thanks Daniel
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I looked the SAMMI site over too. Most of what SAMMI and CIP have I've downloaded to the computer. They did standardized the 280 AI.
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MickinColo, I went back and looked at your drawing a second & third time and I beleive the drawing IS a 7x57 AI. I misread some of the numbers as to what length they applied too. The 2.235 in is VERY CLOSE TO WHAT I AM GETTING. Thanks for your assistance. Daniel
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