Need help with CB in 30 carbine for M1 carbine

[rdwarrior]

Hope someone can help me out. I just started casting bullets (mold 309-113) which with my alloy weighs 117gr with the GC for my recently acquired M1 Carbine. I have gone through all my books and cannot find a CB recipe for the 30 carbine with the powders I have on hand. All the data I can find are for jwords - I did find a recipe for 120 gr CB but I have none of those listed powders.. I have the boolits powder coated, sized, and ready to go for some test rounds. Just need some help with a starting load with various powders. (powders on hand include H110, HS6, cfe223, cfe-pistol, titegroup, longshot, leverevolution, bullseye, h335, and other powders for the .308/30-30/30-06)
TIA
rdwarrior

[Hickory]

This is a common mistake a lot of new casters make, trying to match existing load data to cast boolit weight.
This is where common sense comes in. Any bullet weight heavier than cast boolit weight will work just fine.
Start with reduced loads and work up with any powder that is suited for or listed for the heavier bullet.

[Der Gebirgsjager]

Modern Reloading, 2nd Edition (Lee) has loads for 115 and 125 gr. lead bullets. H-110 is one of the loads listed for 115 gr.

[Outpost75]

Cast Bullet Loads in Ruger Blackhawk Revolver and US .30 Caliber M1 Carbine

Ammunition__________Ruger 7-1/2”________US M1 Carbine 18”

Accurate 31-087B

7.4 grs. AutoComp_____1502 fps, 19 Sd, 52 ES__1759 fps, 5 Sd, 23 ES
14 grs. IMR4227_______1414, 64, 165_________1834, 28, 80
14 grs. IMR4198_______1176, 38, 99__________1543, 69, 178

Accurate 31-100T

7.4 grs. AutoComp_____1527, 11, 29__________1692, 16, 54 Most accurate load
14.0 grs. IMR4227_____1524, 12, 35__________1858, 13, 33
14.0 grs. IMR4198_____1178. 52, 125_________1526, 30, 108

Accurate 31-120TG

7.4 grs. AutoComp______1313, 33, 84_________1560, 15, 57
10 grs. Alliant #2400____1310, 36, 77_________1590, 22, 68


253800253801253802

[rdwarrior]

Modern Reloading, 2nd Edition (Lee) has loads for 115 and 125 gr. lead bullets. H-110 is one of the loads listed for 115 gr.

Der Gebirgsjager - is there any chance you could send a picture of the page listing botht he 115 and 125 gr lead boolits with H110?The Lee book is about the only one I dont have.
rdwarrior

[Texas by God]

I'm assuming you put on gas checks if it is the Lee C309113F. I would use the starting load of H110 for 110gr jacketed bullets then work up( if needed)to obturate the case fully. I size mine to .309".

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[rdwarrior]

I'm assuming you put on gas checks if it is the Lee C309113F. I would use the starting load of H110 for 110gr jacketed bullets then work up( if needed)to obturate the case fully. I size mine to .309".

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Texas
I slugged my barrel and it measured .3094. Since normallu cast boolits need to be .001-.002 over barrel size, so I sized at.311. Yes they are gas checked.

[rdwarrior]

I need to correct my original Post - cant edit it. My alloy was not 50/50 coww/soww. it was roughly 90 soww/10 coww with a BHN of 12-13 (cabine tester).

[Der Gebirgsjager]

253817
Click to enlarge.

[rdwarrior]

253817
Click to enlarge.
Thank you. I think I see an anomoly if you look at H110 for the 115 gr and 130 grain lead boolit.
rdwarrior

[Der Gebirgsjager]

Yes, I believe I see what you are referencing-- the velocity, which is shown higher with the heavier bullet. The powder charge is proportionate, with the lighter bullet using more powder, and the pressure is the same (which isn't impossible).

There have only been two comprehensive hardback Lee manuals, No. 1, No. 2. No. 2 was published in 2003, and No. 1 several years earlier. Over the years that I have been reloading and have used the Lee manuals as part of my references, I have found several entries that I thought were possibly incorrect. I've always called the company and chatted with one of their ballistic people about my concern, and have usually been satisfied. One seeming error I encoutered that appeared in No. 1 was omitted in No.2. You can bet that since 2003 every load in the book has been scrutinized multiple times by multiple people, and every error or possible error has been brought to their attention. So, although I feel that these loads are safe, if the velocity discrepancy bothers you, I would phone Lee and ask about it. But the powder charges seem to be in line, and you can always chronograph your load for the velocity.

[Larry Gibson]

I use 13.5 gr H110 under a 118 gr Lyman 311359 GC'd bullets for many years in M1 and M2 Carbines. It runs 1875 +/- out of numerous M1 carbines. It is quite accurate [more so than most ball] and if zeroed poa to poi at 150 yards it regulates to the sight range settings to 300 yards.

[nagantguy]

I use 13.5 gr H110 under a 118 gr Lyman 311359 GC'd bullets for many years in M1 and M2 Carbines. It runs 1875 +/- out of numerous M1 carbines. It is quite accurate [more so than most ball] and if zeroed poa to poi at 150 yards it regulates to the sight range settings to 300 yards.
Some time back I used this exact advice from our friend Mr. Gibson in two M1 carbines we were playing with- worked extremely well in one and acceptability well in the other.

[rdwarrior]

Texas by God Larry Gibson Texas and Larry, what size do you recommend I size my cast bolits to given my bore was slugged at .3094? The only two sizers I have to choose from are .309 and .311.
TIA

[Larry Gibson]

I generally size at .309 to get reliable chambering in my M1 Carbines. Most 30 Carbine cases, milsurp and commercial, are pretty thick at the case mouth and bullets larger than .309 can cause chambering problems....mostly the bolt won't close all the way. This is because most all M1Carbines have fairly close tolerance chambers because the case headspaces on the case mouth and the original FMJ diameter was .307 with a 105 - 107 gr bullet. A chamber cast will quickly tell you the max diameter at the seated bullet you Carbine will take. That will guide you best on what to size your bullets at.

[rdwarrior]

Thank you Larry Gibson. Always appreciate your advice and guidance.

[Texas by God]

This thread prompted me to shoot the missus' carbine( she was at work;-). My load is pushing maximum according to 9th Hornady. This is at 40 yards from bags. The factory round was a fouler/ trigger pull reminder shot. The same load with PPU 110gr sp didn't group like the Lee, but I smashed a clay bird first shot at 100 yards- so I quit while I was ahead. I better clean and oil that little thing for her.https://uploads.tapatalk-cdn.com/20200101/427751247cee115e0f15e83719171940.jpg

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[fcvan]

Years ago, Dad had an M1 Carbine and later bought a Ruger. As reloaders, Dad bought a SAECO mold they no longer catalog. Back in the mid 1970s, dad reloaded using the 110 grain half jacket plinker because they were so cheap. Flash forward a few decades, I started loading for 30 Carbine and purchased the Lee C309-120 RN and loaded according that weight by working up until I4227 consistently cycled the Carbine. Dad stopped casting a long time ago and so sent myself and my brother home with his reloading equipment. Among the gear was the SAECO 310 advertised as a 100 grain RNPB boolit. It was never used as Dad said, the plinkers were so cheap.

I cast up and powder coated a few and they weighed 95 grains. After working up a load it finally consistently cycled at 13 grains of I4227. Accuracy was fantastic, velocity was 1950-1980 FPS. Sure was nice to not have to mess with gas checks, even though I make my own. I don't have a carbine of my own but I do have Dad's RBH. Try as you may, there is now way to load the RBH without it being an EarSplittiLoudenBoomer, even at subsonic loads.

I have read where folks only shoot the RBH when someone at the range is being a jerk or unsafe. They said 12 rounds was generally enough to send the jerks away. Although I have never had jerks or unsafe shooters to send away I have had folks politely ask if I would hold off on the RBH until they left which usually was within thirty to sixty minutes. Now I just bring it out to remind me that it is so obnoxious and not very enjoyable for recreational shooting. Back in the mid 1970s, it was the handgun I carried on pig hunts. Never had to shoot more than 2 but I still wore ear plugs when hunting with that gun.

[jimb16]

That so called anomaly may very well be due to the fact that the lighter bullet is a gas checked round and the 130 is a lead plain base. I've found the check can make for some odd results compared to a plain base.

[Old Coot]

fcvan, load that RBH 30carbine to 32/20 velocities and you will have a much more pleasant revolver. Brodie

[dogmower]

i use 12 grains 2400 in that boolit without the gas check, grapefruit sized groups at 200 meters. i also shoot a 105 grain plain based boolit over 15 grains of aa1680. same accuracy.

[T-Bird]

I shoot that boolit out of a 1944 Inland over 12.7gr H 110. I size .310 . With mine I can hit a beer can most of the time at 75 yds from a rest.

[GONRA]

Decades ago, GONRA's .30 US Carbine load used 119 grain U311359 cast bullet with Lyman gas check, Lyman lube, sized .309 inch
with 13.6 grains DuPont 4227 powder, CCI 400 primers. Shoots great: US M1, M2 carbines, Jap Howa copy too.
Load probably is right out of the Lyman manual....

[beltfed]

The Lyman 311316GC bullet ran well in the Inland .30 carbine I had.
Now shoots well in my RBH.
For this ctg in the carbine I just loaded initially with starting loads for jacketed bullets.
worked up, got good function. Shot the 311316 cast bullets well, about equal to 110 gr JSP and better than LC ball.

I recall that IMR4227 gives less of the "Loutengeboomer"/muzzle flash,etc than the ball ammo or the ball powders, especially in the RBH.

beltfed/arnie

[Larry Gibson]

I have shot thousands of 311359s in numerous M1 and M2 Carbines. Cast of COWW + 2% tin these days, sized .309 and lubed with 2500+ (or any NRA 50/50 lube) I load them over 13.5 gr H110. Excellent accuracy at 1800 fps.