45ACP Rounds w/No Expanding

[CQB45ACP]

I don't remember finding official load data for these. I'm not sure. I got the recipe from Glocktalk website on a thread for 45super information. Lots of load data there. The OP of the load data was using 1 grain more than I am using pushing them to 1164fps. He also used a longer OAL and another .8 grains to get past 1200fps. He had no signs of pressure, I would think 1300fps would be about the max at no more than 45000psi. My gun is not setup for that. I thought about getting a bigger brake, but no. I am happy where I am at and further velocities won't gain me much.

Okay. I only use published data.

 

[JHTexas]

Tough part about discussing one option on reloading is everyones purpose, dies, brass, bullets and sequence of loading prep may differ. As an example if i was using .452 lrn in good condition quality brass, would not/do not undersize it. I just don't re-expand it, but do bell the case mouth. However alot of my practice brass is more than well used, and it gets u died. As is all the 45 acp Rem brass, which only gets used for lead practice rounds. It's just another consideration.

Yes, there’s more than one way to do something and those many ways produce the intended results.
I was mainly thinking about what would help someone get that point of knowing when to use a different process and to help them verify they made the right decision. So many variables…

 

[Walkalong]

He had no signs of pressure,

By the time you see “pressure signs” on .45 ACP primers, you are way over max, way over.

 

[Walkalong]

Besides, the OP is discussing normal pressure .45 ACP loads and not using the expander.

Hot rodding the .45 ACP isn’t really on topic or germane to the conversation.

 

[PWC]

I plan to shoot them in the morning in my Les Baer workhorse. If all goes well I’ll report back.

Be sure to check for setback; pull the slide back to eject a just chambered round.

 

[JHTexas]

They may be slick but slicker than Extreme?

BTW, I’m keeping one constant here—brass—and am using only from my preset batch of 200ish Winchester cases which are part of my informal longevity test.

Yes, always a good idea to not change more variables then necessary.

 

[CQB45ACP]

Be sure to check for setback; pull the slide back to eject a just chambered round.

Yes indeed

Using dummy rounds

 

[GeoDudeFlorida]

Be sure to check for setback; pull the slide back to eject a just chambered round.

I’m thinking we (all! everyone who reloads!) need a @jmorris built inverted scale with adjustable tension to press on the base and bullet tip to measure kg*m*s of bullet setback.

 

[CQB45ACP]

Besides, the OP is discussing normal pressure .45 ACP loads and not using the expander.

Hot rodding the .45 ACP isn’t really on topic or germane to the conversation.

Right

 

[CQB45ACP]

I’m thinking we (all! everyone who reloads!) need a @jmorris built inverted scale with adjustable tension to press on the base and bullet tip to measure kg*m*s of bullet setback.

Great idea!

 

[GeoDudeFlorida]

Right

I was under the impression you were looking at the opposite of hot-rodding. Factory equivalent loads, correct?

 

[StrykerByte.45]

By the time you see “pressure signs” on .45 ACP primers, you are way over max, way over.

That depends on if the gun is built for it or not. I don't expect to ever see signs of pressure as long as Power Factor is within the parameters of my build. These heavy rounds have the highest PF at 275. My 200gr loads at 960fps have 192PF and have minimal function with cases landing near my feet. So my parameter is between 190-275PF with cases going 10ft at the highest. Can I go hotter? Yes, but that will put more wear than I chose to have on my gun with my current build. I also have the choice to not fire anything that has cases ejecting more than 6ft if I want. Like if I used a different model .45auto that is not as durable as my Glock, like a 1911 for example, I would want to minimize case ejection with a more efficient comp. It all just depends. It is possible to have a 45auto built so well that recoil is very low and pressures are so high that primers are backing out or worse.

 

[CQB45ACP]

I was under the impression you were looking at the opposite of hot-rodding. Factory equivalent loads, correct?

Yes

Only did my hot rodding with cars.

Never when loading

 

[CQB45ACP]

That depends on if the gun is built for it or not. I don't expect to ever see signs of pressure as long as Power Factor is within the parameters of my build. These heavy rounds have the highest PF at 275. My 200gr loads at 960fps have 192PF and have minimal function with cases landing near my feet. So my parameter is between 190-275PF with cases going 10ft at the highest. Can I go hotter? Yes, but that will put more wear than I chose to have on my gun with my current build. I also have the choice to not fire anything that has cases ejecting more than 6ft if I want. Like if I used a different model .45auto that is not as durable as my Glock, like a 1911 for example, I would want to minimize case ejection with a more efficient comp. It all just depends. It is possible to have a 45auto built so well that recoil is very low and pressures are so high that primers are backing out or worse.

Let’s start a new thread for this.

 

[GeoDudeFlorida]

Yes

Only did my hot rodding with cars.

Never when loading

Smart move.

 

[CQB45ACP]

I suppose that’s all that needs to be said for now so @Walkalong you may shut this down if you wish.

As usual, I learned a lot and appreciate everyone’s input.