9mm reload question

[Gjoconnell]

Was crimping my latest batch of reloads:

Wsp primer, trimmed case .750, 4 grains titegroup, 115 grain lrn, and the first batch of 100 was seated to oal 1.12-1.14.

Second batch oal is 1.068-1.078.

Gun to be used is a glock 17 all of the above fit in barrel no issues but I am worrie the 1.068 need to be pulled. Should I be worried and pull them?

[Kaisa]

I wouldn't shoot anything that short personally. That's not much room between the bullet and powder imo - definitely a +p round at least. 1.10 is considered the minimum for that bullet I think. What i do when I come up short is just try and semi-pull the bullet out then reseat. Give it a couple of taps - saves a lot of work. Did you factory crimp too?

I find my press does this on the last 4 rounds due to a different load on the shell plate. I just a catch those 4 and back the seater out a bit, pull them a bit then reseat.

I am over cautious though after watching my friend blow the slide off his 1911 with a double charge - it was a stainless slide too.

['ol shooter]

I tried some 200gr. loads for .45 acp and loaded them too short. Kinetic bullet puller and 3-5 good whacks brought them out far enough to re-seat and crimp. Just resign yourself that it's going to take a little time, and you'll get it done.

[mjmagee67]

How far are you from Max load? If your are .5 to 1 under I would shoot 1 or 2 and look for pressure signs. If you at max, pull them.

On a side note you don't actually trim 9mm brass do you? There is no reason to trim straight well pistol brass. I've loaded 10s of thousands of 9mm and have never measured one and have never has an issue. It's just not needed.

[KahrGuy9]

Was crimping my latest batch of reloads:

Wsp primer, trimmed case .750, 4 grains titegroup, 115 grain lrn, and the first batch of 100 was seated to oal 1.12-1.14.

Second batch oal is 1.068-1.078.

Gun to be used is a glock 17 all of the above fit in barrel no issues but I am worrie the 1.068 need to be pulled. Should I be worried and pull them?

First of all, you don't need to trim straight wall pistol brass. Hodgdon TiteGroup load data for a 115 LRN is 3.9 - 4.3 grains at 1.100". I get a variance of
+/- .005" in OAL on both the Dillon 550 and Square Deal. So while there is no problem running at 1.13 +/- .010" or at 1.073 +/- .005" the issue is why the big change in OAL? Which press are you running? Also shooting lead in OEM Glock barrels requires you pay more atttention. Escpecially above 1,000 fps the lead builds up rapidly which reduces the effective bore diameter. As noted OAL variance must be checked on a 'fully loaded' press, ie, all stations operating. If you run one bullet at a time the seat pressure is very different than a full shell plate on a progressive. There is no danger at 1.073" I run 125 Bear Creek RN moly on top of 4.0 grs TiteGroup at an OAL of .1065"

[Gjoconnell]

First of all, you don't need to trim straight wall pistol brass. Hodgdon TiteGroup load data for a 115 LRN is 3.9 - 4.3 grains at 1.100". I get a variance of
+/- .005" in OAL on both the Dillon 550 and Square Deal. So while there is no problem running at 1.13 +/- .010" or at 1.073 +/- .005" the issue is why the big change in OAL? Which press are you running? Also shooting lead in OEM Glock barrels requires you pay more atttention. Escpecially above 1,000 fps the lead builds up rapidly which reduces the effective bore diameter. As noted OAL variance must be checked on a 'fully loaded' press, ie, all stations operating. If you run one bullet at a time the seat pressure is very different than a full shell plate on a progressive. There is no danger at 1.073" I run 125 Bear Creek RN moly on top of 4.0 grs TiteGroup at an OAL of .1065"

Honestly I think when I got up for a second to stretch my legs I inadvertently grabbed the die and twisted it a little. I was just inspecting the loaded rounds and noticed in one container that I could see the rounds were visibly shorter. My vision is pretty stupid @ 20/8 or I don't think I would have noticed it.

[Gjoconnell]

How far are you from Max load? If your are .5 to 1 under I would shoot 1 or 2 and look for pressure signs. If you at max, pull them.

On a side note you don't actually trim 9mm brass do you? There is no reason to trim straight well pistol brass. I've loaded 10s of thousands of 9mm and have never measured one and have never has an issue. It's just not needed.

Starting load per the manual is 3.9 grains with a max of 4.3 as someone else mentioned so I am close to the starting min. load but the range is pretty tight between min and max.

Using Rainier LeadSafe Bullets 9mm.

[Gjoconnell]

I wouldn't shoot anything that short personally. That's not much room between the bullet and powder imo - definitely a +p round at least. 1.10 is considered the minimum for that bullet I think. What i do when I come up short is just try and semi-pull the bullet out then reseat. Give it a couple of taps - saves a lot of work. Did you factory crimp too?

I find my press does this on the last 4 rounds due to a different load on the shell plate. I just a catch those 4 and back the seater out a bit, pull them a bit then reseat.

I am over cautious though after watching my friend blow the slide off his 1911 with a double charge - it was a stainless slide too.

Seems like some whacking is in the future! I was using the lee die for crimping which is included in the 4 die set.

[Gjoconnell]

I wouldn't shoot anything that short personally. That's not much room between the bullet and powder imo - definitely a +p round at least. 1.10 is considered the minimum for that bullet I think. What i do when I come up short is just try and semi-pull the bullet out then reseat. Give it a couple of taps - saves a lot of work. Did you factory crimp too?

I find my press does this on the last 4 rounds due to a different load on the shell plate. I just a catch those 4 and back the seater out a bit, pull them a bit then reseat.

I am over cautious though after watching my friend blow the slide off his 1911 with a double charge - it was a stainless slide too.

I will whack them back to 1.11 to be safe and see how things go. I think if I get them over the 1.10 mark I should be okay at 4 grains which is close to the min. Thanks for all the advice everyone.

[mjmagee67]

Your safe just shoot them. Your not maxed out and your AOL is in line with what people normally run.

[Mot Mi]

I've ran numerous 9mm and 45s down -.50 of min OAL and would not recommend such a thing. This was tested in a shield 9mm and a 1911 chambered in 45. There were some serious pressure signs with a very slow powder, similar to 296, h110 etc... also, this was in the middle of min and max charge as I only load max up to 5 rds when testing. Like some of the others have mentioned, I would hit them a few times but not pull them entirely out to reseat them to where you want and call it a day. It's always better safe than sorry as something with pressure signs or spikes could result in injury, death, or a 300+ firearm down the hole. God forbid the latter.

[mjmagee67]

I've ran numerous 9mm and 45s down -.50 of min OAL and would not recommend such a thing. This was tested in a shield 9mm and a 1911 chambered in 45. There were some serious pressure signs with a very slow powder, similar to 296, h110 etc... also, this was in the middle of min and max charge as I only load max up to 5 rds when testing. Like some of the others have mentioned, I would hit them a few times but not pull them entirely out to reseat them to where you want and call it a day. It's always better safe than sorry as something with pressure signs or spikes could result in injury, death, or a 300+ firearm down the hole. God forbid the latter.

296, H110 are magnum pistol powders, way too slow for 9mm you probably couldn't get enough powder in the case to overpressure it's just too slow. As far as pressure signs on a 45ACP if you are getting pressure signs on 45 ACP you are way over, 45ACP runs at 19,000PSI to 21,000PSI for +P normal LPP's can handle 33,000+PSI I know people who don't even use Mag primers in 44Mag and they only show minimal flattening.

He is just not that hot or that short, I would shoot them in any of my 9mm's

[KahrGuy9]

I've ran numerous 9mm and 45s down -.50 of min OAL and would not recommend such a thing. .

.50"??? Did you mean .050"? 9mm minimum is 1.000" and maximum is 1.169"
A 124 grain bullet is typically just over .50" long. The 9mm case is only .750" long.

[Gjoconnell]

Got to the range today and the ones loaded to 1.071 fired without issue as did the ones in 1.10 and 1.12. Have yet to inspect the primers but I went with a mild load and didn't have any major issues. A couple jams over 200 rnds but not bad for my first batch of reloads. The .45s worked as well except for the ones with bullet shavings from the seating which i just fired to see if it would work at all. The HK USP wasn't fussy with it....the Kimber was though.

[Kaisa]

USPs aren't a fussy gun in my experience. The only issue I've ever had with my '95 - had it since '99 (thousands of rounds) are a couple of light primer strikes and I do mean a couple - but other than that it eats anything happily.