Help with 223 loads for 700 sps varmint
- Thread starter AaronGer
- Start date
Ok that makes sense.
Other than having to fix up the primer pockets I like the federal (American Eagle) brass. I'm on loading #5 on one batch and just keep prepping more. I have around 700 pieces in circulation now with about 600 of those loaded with various bullets and powders to test (I have 3 223's).
Remington brass is nice, I cut it and convert it to 300 Blackout brass for one of my AR's and my non restricted ACR.
Hmmm, thinking about it some more maybe it was more than $100, As you see it in the picture straight from Boyd's. I would have to look for the invoice but maybe it was $99 for the stock and probably around $50 for shipping. I don't pay much attention to prices, if I did I wouldn't buy as much stuff as I do. This isn't a very good hobby to get into on a budget.
I bought the ABCs of reloading and I got a hand me down old hornady reloading manual. I can't shoot or reload right now so I'm reading up. It's a bit overwhelming but I'm going slowly and picking away trying to digest it all.
I just wanted to post some data from my earlier shooting session. Also it appears that bullet length and rifle twist need to be matched more so than bullet weight. For some reason bullet length is not usually posted so I measured some of mine. I also measured some 6mm bullets that I plan on using with my .243 win rifle. I calculated ideal twist rates based on the green hill formula found in the ABC's or reloading. This doesn't seem entirely accurate as increased velocity seems to require a slower twist than what is recommended.
Length in inches /diameter in inches
150 / result
Total x diameter = twist rate
#note# this seemed to be for fairly low velocity rounds. At velocities over 3000 fps a lower twist is recommended. Which would explain why the 1 in 12 twist seems to work with rounds that compute with a recommendation of 1 in 10. I am by no means an expert and am open to correction or recommendations from others. I'm just trying to put some data out there that I struggled with finding.
Hornady 52 gr AMAX
IMR4064 22.7 - 25.5 grains
5 shot groups @100m from a bench
Cleaned between groups
22.7 gr. 5 shots 1.904" best 3 0.794"
23 gr 5 shots 1.504" best 3 .626"
23.5 gr. 5 shots 1.387" best 3 0.656"
23.7 gr 5 shots 1.586" best 3 0.281"
24 gr. 5 shots 1.068" best 3 0.651"
24.5 gr. 5 shots 1.417" best 3 0.759"
25 gr 5 shots 2.284" best 3 0.958"
25.5 gr. 5 shots 2.889" best 3 0.959"
23.5 to 24.5 worked reasonably well. Over 24.5 shots became very erratic.
Bullet lengths .224 dia
Hornady 50 gr spire point 0.657" 1 in 12 twist
Sierra 52 gr hpbt match 0.728" 1 in 10 twist
Sierra 55 gr spitzer 0.729" 1 in 10 twist
Bullet lengths 6mm (.243)
Sierra 60 gr hollow point 0.743" 1 in 12 twist
Sierra 85 gr spitzer 0.913" 1 in 10 twist
Hornady 87 gr spire point 0.926" 1 in 10 twist
Hornady 95 gr SST 1.118" 1 in 8 twist
Sierra 100 gr soft point 0.982" 1 in 9 twist
Length in inches /diameter in inches
150 / result
Total x diameter = twist rate
#note# this seemed to be for fairly low velocity rounds. At velocities over 3000 fps a lower twist is recommended. Which would explain why the 1 in 12 twist seems to work with rounds that compute with a recommendation of 1 in 10. I am by no means an expert and am open to correction or recommendations from others. I'm just trying to put some data out there that I struggled with finding.
Hornady 52 gr AMAX
IMR4064 22.7 - 25.5 grains
5 shot groups @100m from a bench
Cleaned between groups
22.7 gr. 5 shots 1.904" best 3 0.794"
23 gr 5 shots 1.504" best 3 .626"
23.5 gr. 5 shots 1.387" best 3 0.656"
23.7 gr 5 shots 1.586" best 3 0.281"
24 gr. 5 shots 1.068" best 3 0.651"
24.5 gr. 5 shots 1.417" best 3 0.759"
25 gr 5 shots 2.284" best 3 0.958"
25.5 gr. 5 shots 2.889" best 3 0.959"
23.5 to 24.5 worked reasonably well. Over 24.5 shots became very erratic.
Bullet lengths .224 dia
Hornady 50 gr spire point 0.657" 1 in 12 twist
Sierra 52 gr hpbt match 0.728" 1 in 10 twist
Sierra 55 gr spitzer 0.729" 1 in 10 twist
Bullet lengths 6mm (.243)
Sierra 60 gr hollow point 0.743" 1 in 12 twist
Sierra 85 gr spitzer 0.913" 1 in 10 twist
Hornady 87 gr spire point 0.926" 1 in 10 twist
Hornady 95 gr SST 1.118" 1 in 8 twist
Sierra 100 gr soft point 0.982" 1 in 9 twist
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