So what's your method of testing a new load?

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iceman755

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What is your preferred method of accuracy testing a new load? Anything special or specific you like to do? I like to test everything at 100 yards for rifle and 20 for pistol.
 

aviator41

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100 yards for rifle, use a sled, .1 grain workup, 5 shots each. then home in on smallest group and work up or down .1 until you get the smallest group.

remove as many variables as possible.
 

swampratt

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.3 gr each step for me in a rifle load then play with tighter .1-.2gr tolerances after a ladder test.
Play with seating depths when you have a promising load, that will sometimes hone it in.
Used to rely on 100 yard..I go 200 now for rifles.
Or 150 yards for the 30-30.

Pistols i have the close range, under 30 yards, loads and the long range loads for 100+ yard shooting.
And what aviator41 stated.
remove as many variables as possible.

Trying different brands of brass will have an effect on groups also.
 

Driller

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2011-01-31 21.43.39.jpg

I work rifle loads up by 0.5 grains through the range in published data. When I find a good accuracy node, I'll work up some more by moving a tenth of a grain or two up and down. To keep from having to record all of the groups and keep the pace of shooting up, I take foam plates and put a target dot on them to use as targets. I'll shoot my range of loads, record the group number and chronograph data in a book, and then label and save the plates so that I can measure the groups and analyze them later at the shop. The plates will fit in a gallon baggie and you can look at the actual group instead of reproduced picture in your range book. If a pull a shot or have some other mistake, I'll note it in the book for when I look at the plates later. I've started putting three or four dots on a plate to keep from using so many. You can get a big package of foam plates at Sams for next to nothing and the target dots are like 5.00 for a hundred or so. You can also make the dots with a marker, but the paste-ons are easier to see at 100 or 200 yards. Once I find a load I like, I'll stretch out the range to see how they do.
 

swampratt

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get your ass handed by the wind at 600.
HA HA! Funny sort of.
That is the truth..
Tried some a couple years ago shooting across a ravine while sitting on a mountain (hill)...Wind goes 4 directions.

400 yards was easy Our next step was 700 and then 900..stacks of rocks..none hit...
 

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