Forum: 300 Whisper Ammo and Reloading
07-10-2005, 06:49 PM
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Replies: 2
Views: 2,148
Gas Port Diameter and SubSonic Loads. . .
Hello All,
Since my last post have made two range trips to test various Loads, all using the 220 Sierra.
Ended up with Two SubSonic Loads. One using H110 and the other using H335.
So far...
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