.12 caliber wildcat

[combatcurt]

Guys, I know this isn't a long range cartridge but I actually have a .12 caliber wildcat necked down from a 222 rem. looking for any ideas on what kind of powder I can try with it and if anybody has QuickLoad software and if there is any info out there. The rifle was bought in an estate sale from a widow and the woman said it was shot more than a couple times with success. Please help! Btw my bullets are 11.3 gr full copper and my barrel is 1:5.8

 

[J E Custom]

Guys, I know this isn't a long range cartridge but I actually have a .12 caliber wildcat necked down from a 222 rem. looking for any ideas on what kind of powder I can try with it and if anybody has QuickLoad software and if there is any info out there. The rifle was bought in an estate sale from a widow and the woman said it was shot more than a couple times with success. Please help! Btw my bullets are 11.3 gr full copper and my barrel is 1:5.8

Try H335 or H110 In the Quick load software. And it should get you started.

There was a 12 Eichelberger that used 13.0+ grains of H335 if you can find any data on it.
And also a 12 cooper that used 6 to 7 grains of Win 680 with 10 to 12 grain bullets.

All of the other 10 and 12 caliber cartridges that I know about were Rim Fire cases.

I hope this helps.

J E CUSTOM

 

[combatcurt]

What exactly makes h335 unique? The closest I have to that burn rate is IMR 4064. I might just rebar rebarrel it anyway.

 

[J E Custom]

What exactly makes h335 unique? The closest I have to that burn rate is IMR 4064. I might just rebar rebarrel it anyway.

It is nothing special just the powder that was used .

J E CUSTOM

 

[combatcurt]

It is nothing special just the powder that was used .

J E CUSTOM

1. Here is a 5 year old update! I saved myself a lot of trouble and bought a lathe and milling machine. This .12 is now a nice shooting .223 AI

I figured I would time travel a little bit and say thanks again for the help anyway!

 

[J E Custom]

1. Here is a 5 year old update! I saved myself a lot of trouble and bought a lathe and milling machine. This .12 is now a nice shooting .223 AI

I figured I would time travel a little bit and say thanks again for the help anyway!

One reason H 335 was used is because it is a ball powder unlike 4064
which is Extruded/stick powder and uses more room in small cases.

I have a 223 AI and it appears that H 335 will out perform all other powders because I can get a Max Load when using the 30 and 35 grain bullets because ball powder is more compact. My 40 grain load in the 223 AI has exceeded 3900 ft/sec and the 35 grain load is pushing 4000 with very little trouble. future testing will include the 30 grain bullet and I will see where that leads me.

I use Lapua brass and it has less volume because of it's thickness and Has only slightly more case capacity in the AI form than other brands
of 223 rem.

J E CUSTOM

 

[combatcurt]

One reason H 335 was used is because it is a ball powder unlike 4064
which is Extruded/stick powder and uses more room in small cases.

I have a 223 AI and it appears that H 335 will out perform all other powders because I can get a Max Load when using the 30 and 35 grain bullets because ball powder is more compact. My 40 grain load in the 223 AI has exceeded 3900 ft/sec and the 35 grain load is pushing 4000 with very little trouble. future testing will include the 30 grain bullet and I will see where that leads me.

I use Lapua brass and it has less volume because of it's thickness and Has only slightly more case capacity in the AI form than other brands
of 223 rem.

J E CUSTOM

I'm also shooting h335 but with the 40gr VMAX. Best powder for this imo. Which 30 gr bullet are you using?

 

[J E Custom]

I'm also shooting h335 but with the 40gr VMAX. Best powder for this imo. Which 30 gr bullet are you using?

I am using the Barns Varmint Grenade. Still trying different primers. Will post the results as soon as I see a difference. I'm still trying to find Federal 205 M primers because I hear they have an advantage over the others. Best to date is the Rem 7 1/2s.

How about you. What primers do you prefer ?

J E CUSTOM

 

[combatcurt]

I am using the Barns Varmint Grenade. Still trying different primers. Will post the results as soon as I see a difference. I'm still trying to find Federal 205 M primers because I hear they have an advantage over the others. Best to date is the Rem 7 1/2s.

How about you. What primers do you prefer ?

J E CUSTOM

About 5 years ago, all I could find was CCI, so naturally, I irresponsibly bought as many as I could and added to the shortage of components here in Washington. Moving on... So I I developed loads for several rifles and couldn't get myself to buy anything else. I still haven't had to buy primers and I should have enough to last another 5 years. I do however use federal large pistol in my 45ACP.

I have a 22-243 win reamer and a couple sssslllllloooooowwwww twist .224 blanks... Those Varmint Grenades might have to make their way into my shop. I wonder if they would disappear mid flight?

 

[J E Custom]

About 5 years ago, all I could find was CCI, so naturally, I irresponsibly bought as many as I could and added to the shortage of components here in Washington. Moving on... So I I developed loads for several rifles and couldn't get myself to buy anything else. I still haven't had to buy primers and I should have enough to last another 5 years. I do however use federal large pistol in my 45ACP.

I have a 22-243 win reamer and a couple sssslllllloooooowwwww twist .224 blanks... Those Varmint Grenades might have to make their way into my shop. I wonder if they would disappear mid flight?

That's the reason I am still testing. My rifle has a 1 in 8 twist barrel and I am working up in velocity to see if the bullets can handle that twist. (The rifle was built for 69 grain bullets but I later wanted to try something faster)

So far they have reached 4,000 ft/sec with good accuracy and my goal
is 4,200 +. We will see.

J E CUSTOM

 

[combatcurt]

That's the reason I am still testing. My rifle has a 1 in 8 twist barrel and I am working up in velocity to see if the bullets can handle that twist. (The rifle was built for 69 grain bullets but I later wanted to try something faster)

So far they have reached 4,000 ft/sec with good accuracy and my goal
is 4,200 +. We will see.

J E CUSTOM

That sounds like a lot of fun. I shoot the 69 smks in my 22-243 and I'm getting a hair over 3650. Incredible accuracy. I won a 600 yard match with is in Washington state. The group was 2 3/4" 10 shots. Now I'm bragging, but that is my only accomplishment with benchrest shooting.

 

[J E Custom]

That's some good shooting !!! at 600 yards with .224 bullets.

J E CUSTOM

 

[FURMAN]

You should check out Saubier.com