Tac Report post Posted August 22, 2017 I went and shot a ladder test this weekend at 400 and had 3 shots touching at 400 #15,16,17. These rounds do not fit in my magazine so I will have to shorten the coal to fit. Curious if any experience says more or less powder with shorter coal? Share this post Link to post Share on other sites
dse Report post Posted August 22, 2017 I would keep the charge the same and load several 3 shot groups at different lengths. Share this post Link to post Share on other sites
Zeke-BE Report post Posted August 22, 2017 Some do better some do worst. The only way to find out is to test it out. Take you load and and do what dse ^^^^ said. Share this post Link to post Share on other sites
oz31p Report post Posted August 22, 2017 I normally start at mag length and ladder test those. Then Work shorter Share this post Link to post Share on other sites
lancetkenyon Report post Posted August 22, 2017 Before you go to seating depth testing, I would do charge weight testing. 3 shot groups, in that range, but in .3 grain increments. Then do seating depth testing at .0400" increments to start. Share this post Link to post Share on other sites
Cell4soul Report post Posted August 22, 2017 If you want to magazine feed, wouldn't it make sense to do another ladder test with the rounds loaded to feedable max magazine length? i am heading to San Diego this weekend for my dad's 70th birthday, but planning on shooting steel the following weekend if you are looking for someone to shoot with. I just picked up a 24" x 30" piece of AR500 and built a target stand. Hard to pass up on that node where the 3 shots are touching, may be worth single feeding. Share this post Link to post Share on other sites
Tac Report post Posted August 22, 2017 I would love to go shoot steel check with me next week should work out fine. Share this post Link to post Share on other sites
