18.8gr Under Speer TNT 125??

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savage308
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Re: 18.8gr Under Speer TNT 125??

Post by savage308 » Thu Jan 13, 2022 11:20 pm

You could slightly enlarge the disc

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sten668
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Re: 18.8gr Under Speer TNT 125??

Post by sten668 » Tue Jan 25, 2022 8:08 pm

The original load data for the 300 Whisper with H110 from J.D. Jones started at 20.2 and went to 22.0 for the 125gn Nosler BT.
I have had good luck with 20.0 gn under a 125 TNT. With my bolt guns chambered for the 300 Whisper/300 Fireball.

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