Re: 18.8gr Under Speer TNT 125??
Posted: Thu Jan 13, 2022 11:20 pm
You could slightly enlarge the disc
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.