I decided to weigh some charges of BH209 tonight. Now, I've been reloading precision rifle and pistol shells for over 30 years now (Oh MY~!) so I know my way around my reloading bench.
I used the 70 gr by weight = 100 gr by volumn conversion.
110 gr by vol = 77 gr by weight
120 gr by vol = 84 gr by weight
I set up the RCBS balance beam scale and proceded to measure some 110 gr charges by vol and weigh them. Holy Cow! I couldn't believe how inconsistant they were. Some of them 10-12 kernals light and some the same amount heavy. I was using this TC measure and being as careful and consistant as I could.
I weighed out 10 charges into Lanes tubes
Then I weighed out 10 charges for 120 grains by vol (84 gr by weight) into BH tubes
Notice that the BH tubes are graduated but all 10 of them indicated 110 gr when I know there's 120 grains in them. I'll have to e-mail BH about that.
Now I wonder how I've been shooting my ML as well as I have all these years. Perhaps black powder and its substitutes simply aren't all that critical for small differances in powder???
Oh yeah, I really like my new hat
I used the 70 gr by weight = 100 gr by volumn conversion.
110 gr by vol = 77 gr by weight
120 gr by vol = 84 gr by weight
I set up the RCBS balance beam scale and proceded to measure some 110 gr charges by vol and weigh them. Holy Cow! I couldn't believe how inconsistant they were. Some of them 10-12 kernals light and some the same amount heavy. I was using this TC measure and being as careful and consistant as I could.
I weighed out 10 charges into Lanes tubes
Then I weighed out 10 charges for 120 grains by vol (84 gr by weight) into BH tubes
Notice that the BH tubes are graduated but all 10 of them indicated 110 gr when I know there's 120 grains in them. I'll have to e-mail BH about that.
Now I wonder how I've been shooting my ML as well as I have all these years. Perhaps black powder and its substitutes simply aren't all that critical for small differances in powder???
Oh yeah, I really like my new hat