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ChrisB
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Smokeless loads - weigh or measure
Sep 23rd, 2015 at 2:29am
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Fairly new to re-loading with smokeless, but have been re-loading with black for many years. With black I weigh each charge to +/- 1/10 of a grain. Do I have to be that fussy with nitro?  I am doing  some trials with some H4198 and Reloader 7 in my 40-70 Sharps Straight, starting with 22 grains - ref: Lymans Cast Bullet Handbook. I have a Lee Perfect measure and I can get 21.8 to 22.2 grains. I am shooting at 100 yards with nitro.
Thoughts please.
Chris  Cool
  
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frnkeore
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Re: Smokeless loads - weigh or measure
Reply #1 - Sep 23rd, 2015 at 3:10am
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If your already in the habit of weighing BP, I would continue that with smokeless.

A good measure will get you +/- .1gr. If I loaded at home, I would weigh but, I use one case and throw my charges at the bench so, weighing isn't a option.

Frank
  

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John Boy
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Re: Smokeless loads - weigh or measure
Reply #2 - Sep 23rd, 2015 at 9:06am
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Quote:
With black I weigh each charge to +/- 1/10 of a grain. Do I have to be that fussy with nitro?
...Yes, weigh nitro based powder (smokeless) carefully because it is more powerful than black powder to assure pressures are within published loading data.

As for black powder, it being a weak powder, weighing to 1/10 of a grain is needless.
Quote:

I load for both myself and wife. She makes wads, lubes and weighs bullets. At the risk of sounding like a braggart, between us we have 40 National Records in Open, Military, Scope, Muzzleloader and Womens catagories for BP Target rifle. And 10 National Championships between Canada and the U.S. in likewise catagories. We don't shoot silhouette. 

To me, the bullet is the most important. Weight, design, appearance and alloy. 
Powder kept around 1/2 grain total variance = good enough. Being able to break a shot down the center, call it and read wind and mirage, priceless...... . Frank Monikowski
  
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ChrisB
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Re: Smokeless loads - weigh or measure
Reply #3 - Sep 24th, 2015 at 1:39am
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Thank you for your thoughts, I will keep my charges to +/- 1/10 of a grain if that is what a good measure should throw.
Cheers,
Chris Cool
  
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