Hi everyone, flexible here.
Getting a 9mm fairly soon...
Any recommendations on brass?
When I needed new brass, I have used Starline with good results and would recommend them for 9mm. But Starline is selling 1000 for $161 with free shipping - https://www.starlinebrass.com/9mm-luger-brass
Me too and I PMed Jake and got following response:
RMR is selling them for $115/1000 with free shipping and offer 5% THR discount and I ordered 1000 to test and use them for reference baseline brass for my testing/myth busting - https://www.rmrbullets.com/shop/cas...parabellum/9mm-luger-new-brass-rmr-cases-new/
Jake had 20 lots of 1000 in-stock but they went fast and now sold out but he should get more soon.
You could wait until I review them before placing your order.
If you reload using progressive press that can experience shellplate tilt/deflection to vary OAL, headstamp/case wall thickness can contribute to finished OAL variance.
9mm case wall thickness .100" below case mouth (Where taper crimp is applied) - https://www.thehighroad.org/index.p...nd-bullet-setback.830072/page-3#post-10712225
9mm case wall thickness .200" below case mouth (Where 115 gr FMJ/RN bullet base gets seated to for 1.130" OAL) - https://www.thehighroad.org/index.p...nd-bullet-setback.830072/page-3#post-10713822
Of course it's not "finished OAL" rather "chambered OAL" that ultimately will affect chamber pressure and resulting accuracy on target and here's myth busting done for neck tension and bullet setback by headstamp - https://www.thehighroad.org/index.p...neck-tension-and-bullet-setback.830072/page-4
Here's measured OAL variance from Lee SPP/Pro 6000 - https://www.thehighroad.org/index.p...r-oal-consistency.911743/page-3#post-12446468
- Blazer unsorted - OAL of 1.128"-1.133" (.005" variance)
- G.F.L. unsorted - OAL of 1.129"-1.133" (.004" variance)
- .FC. unsorted - OAL of 1.128"-1.131" (.003" variance)
- FC unsorted - OAL of 1.130"-1.132" (.002" variance)
- WIN unsorted - OAL of 1.131"-1.133" (.002" variance)
- R-P unsorted - OAL of 1.133"-1.134" (.001" variance)
And OAL variance from 2023 (Gen3) Lee Pro 1000 - https://www.thehighroad.org/index.p...pro-1000-unboxing.916672/page-2#post-12569726
- R-P "." unsorted - OAL of 1.134"-1.135" (.001" variance)
- Blazer - 1.128" - 1.126" - .002"
- Blazer - 1.128" - 1.125" - .003"
- FC - 1.131" - 1.131" - .000"
- FC - 1.131" - 1.131" - .000"
- WIN - 1.133" - 1.133" - .000"
- WIN - 1.133" - 1.133" - .000"
- R-P - 1.134" - 1.134" - .000"
- R-P - 1.134" - 1.134" - .000"
- R-P "." - 1.134" - 1.134" - .000"
- R-P "." - 1.134" - 1.134" - .000"
I am pretty sure he is having them made by someone else. Been busy doing 12/3/6/9 O'clock case wall thickness measurements at .100"/.200" below case mouth for round 2 of myth busting neck tension/bullet setback thread (Stay tuned for bullet setback results using various multiple diameter 9mm bullets of .354"/.355"/.3555"/.356")Jake ... Is he making them or buying them for resale???.
Starline majes complete sense as a small operationI am pretty sure he is having them made by someone else. Been busy doing 12/3/6/9 O'clock case wall thickness measurements at .100"/.200" below case mouth for round 2 of myth busting neck tension/bullet setback thread (Stay tuned for bullet setback results using various multiple diameter 9mm bullets of .354"/.355"/.3555"/.356")
Based on myth busting thread where I measured case wall thickness at .100"/.200" below case mouth, RMR measurements come closest to Starline measurements and RMR brass is thicker than Blazer/FC/.FC./Speer/WIN and DRT/SIG I am adding to round 2 testing:
Thickness .100" below case mouth where taper crimp is applied - https://www.thehighroad.org/index.p...nd-bullet-setback.830072/page-3#post-10712225
RMR: .011"/.011"/.011"/.012"
RMR: .011"/.011"/.012"/.012"
RMR: .011"/.012"/.012"/.012"
Starline: .011"/.011"/.012"/.011"
Starline: .013"/.011"/.010"/.011"
Starline: .010"/.011"/.011"/.011"
Thickness .200" below case mouth where 115 gr FMJ bullet base gets seated down to - https://www.thehighroad.org/index.p...nd-bullet-setback.830072/page-3#post-10713822
RMR: .012"/.012"/.012"/.013"
RMR: .012"/.012"/.013"/.013"
RMR: .012"/.013"/.013"/.013"
Starline: .012"/.012"/.013"/.012"
Starline: .012"/.013".012"/.011"
Starline: .012"/.012"/.013"/.013"
Only mention it to mention it and to see if anyone had experienced the same.......or if it is just me.
I pick up enough brass I've yet to figure out what a worn out piece looks like. I've got 5+ loadings on my rp test 308 and only bump .001 so those may last forever... I have no idea how many cycles my 9mm had on them because I picked it up by the pile and never kept track. My 38/357s split down the side and those get pitched but that doesn't happen often and they were range pickups or gifted to begin with. I'm starting to think it's a gas gun only thing. Or when someone shoots major in 9mm and or has a bulge from an unsupported chamber.I wouldn't think "2 or 3 thousandths" would be noticeable especially on 9mm brass. Actually that's pretty darn close! Crimping semi-auto rounds is misnamed, should say "deflare". I have been reloading 4 different semi-auto calibers for quite a while and haven't "crimped" any. I use a ram prime and can't say I have found any 9mm brass, new, once or 5 times fired, that have "loose pockets". I've slowed down reloading in the last 3 years to maybe just 600-700 rounds per year and still use once (or 5 times) fired 9mm brass trouble free...