leadman
02-15-2012, 11:40 PM
Awhile back someone posted they thought the difference in capacity between the 7.62X39 and the 300 Whisper was only a few grains.
I was processing some 7.62X39 tonight and thought I would check out the difference. I used WC680 as it is the original powder for the 7.62X39 and works well in the 300Whisper also.
Filled to the neck the 7.62X39 holds 30 grains, the 300 Whisper held 19.3 grains.
10.7grs. is a significant difference.
I was processing some 7.62X39 tonight and thought I would check out the difference. I used WC680 as it is the original powder for the 7.62X39 and works well in the 300Whisper also.
Filled to the neck the 7.62X39 holds 30 grains, the 300 Whisper held 19.3 grains.
10.7grs. is a significant difference.