The tale of 4 bullets - need advice please

[ArchAngelCD]

vaalpens, above you said you were shooting only 2 rounds of each load over the chronograph. Two rounds will never give you good information on SD and ES numbers. You need a much greater sampling, I use 10. IMO you are laboring much too much on the small things, order 500 bullets and shoot them. Don't get bogged down on the numbers and forget to have fun shooting. (from first hand experience)

With a 158gr LSWC bullet I shoot a lot of:
4.0gr W231, CCI500 primer, .38 Special brass.
9.2gr HS-6, CCI550 primer, .357 Magnum brass.

Have fun...

 

[vaalpens]

vaalpens, above you said you were shooting only 2 rounds of each load over the chronograph. Two rounds will never give you good information on SD and ES numbers. You need a much greater sampling, I use 10. IMO you are laboring much too much on the small things, order 500 bullets and shoot them. Don't get bogged down on the numbers and forget to have fun shooting. (from first hand experience)

With a 158gr LSWC bullet I shoot a lot of:
4.0gr W231, CCI500 primer, .38 Special brass.
9.2gr HS-6, CCI550 primer, .357 Magnum brass.

Have fun...

ArchAngelCD, you are correct. I was wondering when somebody was going to question the two rounds only per load and how good the chrono results will be.

The test was actually to check the POI with different loads using the same bullet. I only had 14 bullets left so instead of just loading them up with one load and shoot them, I decided to try and derive some data from the test. This is also why I shot all of them at the same target.

The grouping just gave me an indication if the 7 different powders will all group in the same general area. An the collected chrono data is just added data points I can use or not use in the future.

The toughest job was to keep the concentration up while I was loading two rounds, change powder, load two rounds again, and repeat until done.