Reloading for USPSA Carry Optics

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GlennSFX
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Tue Feb 25, 2020 11:43 am

Weapon wrote:
Tue Feb 25, 2020 10:21 am
GlennSFX wrote:
Wed Feb 19, 2020 11:47 am
Weapon wrote:
Tue Feb 18, 2020 11:37 pm
That bullet in that case??

Okay, I will try anything to see if the SFx likes it...

6DAF3E8D-E159-474D-B8F3-EDBBB69FBF4E.jpeg
Looks like ACME semi wadcutters to me!
Probably have enough room with TiteGroup or Action Pistol. 3 - 3.3g doesn't take up that much room!

http://www.acmebullet.com/bullets-reloa ... uct_id=486
Yeah - that’s an Acme 150. I have some other heavies on the way but I figured I would start with one that was semi-reasonable. I think I am going to stray into oddball powder land for this one. :)
I bought 100 of them initially, but never tried them.
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Re: Reloading for USPSA Carry Optics

Post by Weapon » Tue Feb 25, 2020 2:00 pm

GlennSFX wrote:
Tue Feb 25, 2020 11:43 am
Weapon wrote:
Tue Feb 25, 2020 10:21 am
GlennSFX wrote:
Wed Feb 19, 2020 11:47 am


Looks like ACME semi wadcutters to me!
Probably have enough room with TiteGroup or Action Pistol. 3 - 3.3g doesn't take up that much room!

http://www.acmebullet.com/bullets-reloa ... uct_id=486
Yeah - that’s an Acme 150. I have some other heavies on the way but I figured I would start with one that was semi-reasonable. I think I am going to stray into oddball powder land for this one. :)
I bought 100 of them initially, but never tried them.
The obvious problem with any heavy for caliber bullet is limited case capacity with a possible set-back and kaboom problem.
However, I will be really surprised if some of them also do not also have a problem with tumbling at lower power factor.

Heavier bullet almost always means longer bullet and longer bullet almost always means more zip required for them to spin properly.
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Re: Reloading for USPSA Carry Optics

Post by BentAero » Mon Mar 09, 2020 8:29 pm

Thought I'd share a couple Chrono screenshots from yesterday.

I was testing some bunny fart Steel Challenge loads, (fail) but thought I'd confirm last year's data on CO ammo just to ensure everything was on track.

I've tried multiple brands of 147's and I like them just fine, but as Weapon mentioned long ago, some ammo loads "feel better" than others. My SFx likes 135's best. My double-taps are far better with 135.

Acme 135 RN
3.5 grains of Sport Pistol
Win primers
1.145 length

Hmmm. The photo uploader keeps enlarging my screenshots, chopping off much of the data. Grrrr...

Image

Image
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Mon Mar 09, 2020 8:44 pm

BentAero wrote:
Mon Mar 09, 2020 8:29 pm

I've tried multiple brands of 147's and I like them just fine, but as Weapon mentioned long ago, some ammo loads "feel better" than others. My SFx likes 135's best. My double-taps are far better with 135.

Acme 135 RN
3.5 grains of Sport Pistol
Win primers
1.145 length
:-? ...I just might have to try some 135s, have only tried 147 and 145. Been reloading the 145s.
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Re: Reloading for USPSA Carry Optics

Post by colonel00 » Mon Mar 09, 2020 8:48 pm

I'll trade you some 135s for some 145s :)
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Re: Reloading for USPSA Carry Optics

Post by LT USN (Ret.) » Tue Mar 10, 2020 5:31 am

I'm buying all the components today for my first trial run at reloading on my buddy's press. We'll be getting 145gr bullets.
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Tue Mar 10, 2020 5:54 am

LT USN (Ret.) wrote:
Tue Mar 10, 2020 5:31 am
I'm buying all the components today for my first trial run at reloading on my buddy's press. We'll be getting 145gr bullets.
:-? ...bet is you'll have your own within 30 days!!! :lol:
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Re: Reloading for USPSA Carry Optics

Post by LT USN (Ret.) » Tue Mar 10, 2020 6:06 am

GlennSFX wrote:
Tue Mar 10, 2020 5:54 am
bet is you'll have your own within 30 days
I think my Mrs. agrees with you, she told me to get an extra bench for the firearm maintenance room.....
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Re: Reloading for USPSA Carry Optics

Post by Brindle Lake Dog » Tue Mar 10, 2020 9:44 am

LT USN (Ret.) wrote:
Tue Mar 10, 2020 5:31 am
I'm buying all the components today for my first trial run at reloading on my buddy's press.
That's how it starts :))
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Re: Reloading for USPSA Carry Optics

Post by LT USN (Ret.) » Tue Mar 10, 2020 6:30 pm

OK, question 1: What is the criteria used to determine OAL?

I measured all the factory rounds I have and across 8 different rounds averaged 1.121". High was 1.145" and low was 1.09".
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Re: Reloading for USPSA Carry Optics

Post by colonel00 » Tue Mar 10, 2020 6:54 pm

LT USN (Ret.) wrote:
Tue Mar 10, 2020 6:30 pm
OK, question 1: What is the criteria used to determine OAL?

I measured all the factory rounds I have and across 8 different rounds averaged 1.121". High was 1.145" and low was 1.09".
I'm still a novice at best but I start with the recommended OAL and then do the "plunk test". Basically you drop a round into a barrel (disassembled from the gun) and test that the round drops in and out freely. You'll actually hear a sort of plunk sound. This is great if you're loading for a single gun. For several guns, I just pulled all the barrels and found the barrel that needed the shortest OAL and then use that as the standard. But, as you mention, factory ammo will have different OALs and will fire fine in the same barrels so I'm still getting my head around when it's absolutely necessary to do and when you'll be fine with a slight long OAL
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Tue Mar 10, 2020 8:08 pm

LT USN (Ret.) wrote:
Tue Mar 10, 2020 6:30 pm
OK, question 1: What is the criteria used to determine OAL?

I measured all the factory rounds I have and across 8 different rounds averaged 1.121". High was 1.145" and low was 1.09".
My COL is 1.135". As @colonel00 you always verify your length in your chamber. Pull the barrel and you should be able to spin it easily.
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Re: Reloading for USPSA Carry Optics

Post by colonel00 » Tue Mar 10, 2020 8:28 pm

So along this topic I'll ask a question that I alluded to in my previous post. Let's say that I have 3 guns. I load for an OAL that works in the shortest barrel. Let's say an arbitrary 1.140" Now I want to shoot the loads in a 4th gun and without me knowing it that gun actually needs an OAL of 1.135". What really happens if the OAL is "too long"? As LT mentioned, factory ammo varies quite a bit as well.
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Re: Reloading for USPSA Carry Optics

Post by BentAero » Tue Mar 10, 2020 11:11 pm

colonel00 wrote:
Tue Mar 10, 2020 8:28 pm
So along this topic I'll ask a question that I alluded to in my previous post. Let's say that I have 3 guns. I load for an OAL that works in the shortest barrel. Let's say an arbitrary 1.140" Now I want to shoot the loads in a 4th gun and without me knowing it that gun actually needs an OAL of 1.135". What really happens if the OAL is "too long"? As LT mentioned, factory ammo varies quite a bit as well.
Errrrrrrrrrr. Hard braking/screeching halt.
Key phrase here was "without me knowing it..."
That's a no no, and can get you hurt. Always, always plunk test to ensure the round will free spin in the chamber.
When the projectile 'shoulders' are too wide and/or the cartridge length is too long, the projectile "bottoms out" in the throat of the breach. This will make the (primer) end of the casing stick out past the breach end of the barrel.
When holding a barrel vertically in your hand, a correct fitting cartridge will sit flush or slightly below flush from the tip of the barrel.
A poor fitting, non plunking cartridge will be proud, or sticking up too high. This will likely prevent it from going into battery if you attempted to chamber it.

My normal 1.145 rounds i use in my sfx are way too long to fit in my Walther PPQM2, even though they have many common parts. I'll try to post photos of what good and bad look like.

Factory made ammo is almost always made with skinny -shouldered projectiles and short OAL so they'll function in most anything.
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Re: Reloading for USPSA Carry Optics

Post by colonel00 » Tue Mar 10, 2020 11:24 pm

Yeah, that's what I'm wondering about. I test mine but didn't really know what would happen.

So factory ammo may have a longer OAL but still function fine because of a skinnier diameter?

Also, how much does it matter that the OAL, when setup for the barrel with the smallest length, is a bit shorter than say barrel #2. So in your example, what if you load for your PPQ and shoot it in the SFX?

Perhaps we should just have a separate thread for "Intro and Noob questions to reloading"
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Wed Mar 11, 2020 5:48 am

colonel00 wrote:
Tue Mar 10, 2020 11:24 pm
Yeah, that's what I'm wondering about. I test mine but didn't really know what would happen.

So factory ammo may have a longer OAL but still function fine because of a skinnier diameter?

Also, how much does it matter that the OAL, when setup for the barrel with the smallest length, is a bit shorter than say barrel #2. So in your example, what if you load for your PPQ and shoot it in the SFX?

Perhaps we should just have a separate thread for "Intro and Noob questions to reloading"
You'll find most factory ammo will be around 1.10" length, This insures it will function properly in just about any gun. But as others have mentioned, you should always check the fit in the barrel chamber.

Shooting a shorter load in a longer chamber will not be a problem. The ideal COL for a "gun" is determined by testing different loads and lengths for the best accuracy. If you're shooting a particular gun for competition, you'll find the best performing round and that will be the "standard" round for that gun.

You just want to ensure the bullet is not touching the rifling in the barrel. That's why you want to make sure the round "spins" in the chamber.
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Re: Reloading for USPSA Carry Optics

Post by LT USN (Ret.) » Wed Mar 11, 2020 6:53 am

GlennSFX wrote:
Wed Mar 11, 2020 5:48 am
You just want to ensure the bullet is not touching the rifling in the barrel. That's why you want to make sure the round "spins" in the chamber.
Got'ya...
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Wed Mar 11, 2020 7:23 am

LT USN (Ret.) wrote:
Wed Mar 11, 2020 6:53 am
GlennSFX wrote:
Wed Mar 11, 2020 5:48 am
You just want to ensure the bullet is not touching the rifling in the barrel. That's why you want to make sure the round "spins" in the chamber.
Got'ya...
If you're reloading...a "Cartridge Gauge" is your best friend!!!! :-D
I check all my reloads. Takes a little time, but worth it. Usually do it when listening to Fox News or whatever. Goes pretty fast once you get in a groove.

https://www.amazon.com/Lyman-Reloading- ... J3W4RZQ8KG
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Re: Reloading for USPSA Carry Optics

Post by TexasJackKin » Wed Mar 11, 2020 12:02 pm

I’ve been having trouble finding Sport Pistol powder, but just got confirmation from Graf’s that I’ve got 4 lbs. coming my way, along with 2,000-- 124 grn HBRN-TP Berry’s bullets. I’ve been using VV-N320 powder $$$, but that stuff is getting harder to find as well. If the Sport Pistol works as well as I’m hoping, I’ll stock up while I can.
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Re: Reloading for USPSA Carry Optics

Post by GlennSFX » Wed Mar 11, 2020 12:58 pm

TexasJackKin wrote:
Wed Mar 11, 2020 12:02 pm
I’ve been having trouble finding Sport Pistol powder, but just got confirmation from Graf’s that I’ve got 4 lbs. coming my way, along with 2,000-- 124 grn HBRN-TP Berry’s bullets. I’ve been using VV-N320 powder $$$, but that stuff is getting harder to find as well. If the Sport Pistol works as well as I’m hoping, I’ll stock up while I can.
My son swears by it!!! I have 12# of it, and I though I'd finish up the last of my Titegroup Monday night, but after 600 rounds I still had more left in the hopper! :cry: Probably around another 300 should finish it up.

I think I'll load up a few with the Sport Pistol on the Lee turret just to see what charge I need. Then I can dial it in on the 650.
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