138 A-Tip Base to Ogive Length

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TripleOption

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#1

• Apr 18, 2025

• #1

Post is exactly as it sounds, does anyone have the base to ogive length for the new Hornady 138 A-Tips? Trying to figure out if I want a .150 freebore or a .180.

I emailed Hornady support and they were not willing to provide that information, although they did let me know the overall length (1.475") and boat tail length (0.195").

 

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OREGUN

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#2

• Apr 18, 2025

• #2

Long af. You want AT LEAST .180.

No I don’t have one here to measure.

Call Stuteville Precision and ask Wade if you don’t believe me.

 

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TripleOption

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#3

• Apr 18, 2025

• #3

I was leaning towards the .180 anyway, I normally start at 0.050" or so out, but wanted to make sure it wasn't going to cause mag length issues.

 

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OREGUN

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#4

• Apr 18, 2025

• #4

I’m a long way from anything to measure (physically. It’s at home. I’m not). But .180 is the standard and longer isn’t unreasonable depending on your jump tolerance.

 

Mordamer

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#5

• Apr 18, 2025

• #5

I've chambered 25x47 and 25 GT both with the .180 FB alpha reamers and they are perfect for the 138 A-Tip. Those reamers also work great for any of the other 130+ grain .25 caliber bullets.

 

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