300 win mag 200 grain eld x

[KYregular]

Just started loading 300 win mag, I have two powders to try. RL 22 and 7828SC. I will start by loading 20 thou off of the lands. Anyone had any luck with this powder/bullet combo?

 

[GoldieMI]

I'm a H-1000 guy but the 10th Edition Hornady Manual shows data for both RL-22 and IMR7828 for the ELD-X. Looks like RL-22 gets the highest velocity claim of 2900fps

 

[KYregular]

I'm a H-1000 guy but the 10th Edition Hornady Manual shows data for both RL-22 and IMR7828 for the ELD-X. Looks like RL-22 gets the highest velocity claim of 2900fps

Wanted to try some H1000 but can't find any. The Hornady edition shows an overall length way below what I'm loading to so I'm starting my ladder in the middle of load data.

 

[GoldieMI]

at this point, you will probably be waiting until mid summer to get it - my local sportsman warehouse actually had it in stock this past fall.
I do the same thing when I'm loading longer than the book...usually start with the max. load and work down by .3/.4 steps (10 steps for a total of 3-4 grains below max.) to figure out my starting load on the higher capacity cases.

 

[Aletheia]

at this point, you will probably be waiting until mid summer to get it - my local sportsman warehouse actually had it in stock this past fall.
I do the same thing when I'm loading longer than the book...usually start with the max. load and work down by .3/.4 steps (10 steps for a total of 3-4 grains below max.) to figure out my starting load on the higher capacity cases.

I'm confused. You start with the maximum load and work down to find your starting load??
Could you explain how you arrived at that plan?

 

[GoldieMI]

not starting at max and actually shooting velocity down
- see if this makes it more accurate:

if i know I want to do 10 steps at .3 grains lower (3 grains) since I'm loading my bolt 300 WM to a longer overall length than the COAL listed for SAAMI
and the book max listed is 79.0 grains of Powder ZZZZ for the SAAMI Spec.
Starting load and watching pressure (Brass/Primers/Extraction/Bolt Sticking) as I work up in the numbers-
load 1- 76.0
load 2- 76.3
load 3- 76.6
load 4- 76.9
load 5- 77.2
load 6- 77.5
load 7- 77.8
load 8- 78.1
load 9- 78.4
load 10- 78.7
Max Load- 79.0
and comparing the velocity shot versus the velocity expected-
mostly because I'm shooting with a chronograph and doing a Satterlee Test as well.

 

[GoldieMI]

and in the test above- I would probably in reality do .5 steps as to test 74-79 grains of powder in the theoretical exercise. With a smaller powder capacity it would .3 or .4 steps

 

[Aletheia]

Thank you for clearing my confusion. I load only 180 and 200 grain bullets in my .300 and I too like H1000 for the 200's. I have a load of IMR4350 that works for some of the 180 grain bullets, but my gun definitely prefers H1000 for heavy bullets (and I think there is no point in a .300WM unless you are throwing heavy for caliber bullets.)

 

[GoldieMI]

my gun definitely prefers H1000 for heavy bullets (and I think there is no point in a .300WM unless you are throwing heavy for caliber bullets.)

+1 Amen to that.