So loading for 9mm in a 5th Gen G19. Getting ready to start playing with the coated cast lead bullets. Have 2 kinds on Order. To try.
Brazos 125g coated round nose, Hi-tek coated at 0.356 BHN 13
Missouri Bullet 124g coated round nose, Hi-tek coates at 0.356 BHN 18
I did not think about it at the time but cast lead, plated, and jacketed are a bit different. My Berry's plated state not to push past 1250. I have been doing some reading. I have found some saying you should stay closer to 1000fps. I have found some that said they pushed as hard as they could in their 1150 range with no issues.
How much will the coating effect things? will it help or make no difference as far as velocity pushing? I know it will help with leading and I wont need lube.
How much will the BHN help, will the harder bullets hold up better? I know from what I have been reading that the bullet diameter in relation to the bore can have more of an effect on how it shoots, but I'm thinking holding together at higher speed.
Is there any way to tell if I'm going too fast other than key-holing?
I can pull back if I need to, max at this point I would push would be in the 1150-1170 range, which is the max I have gotten with 124g jacketed so far.
On a side note, after some more research, I found this on Missouri's site a ways into the FAQ Section.
Will be curious to see how the Brazos 13bhn hold up. It looks like the Missouri bullets should hold up just fine to me pushing.
Brazos 125g coated round nose, Hi-tek coated at 0.356 BHN 13
Missouri Bullet 124g coated round nose, Hi-tek coates at 0.356 BHN 18
I did not think about it at the time but cast lead, plated, and jacketed are a bit different. My Berry's plated state not to push past 1250. I have been doing some reading. I have found some saying you should stay closer to 1000fps. I have found some that said they pushed as hard as they could in their 1150 range with no issues.
How much will the coating effect things? will it help or make no difference as far as velocity pushing? I know it will help with leading and I wont need lube.
How much will the BHN help, will the harder bullets hold up better? I know from what I have been reading that the bullet diameter in relation to the bore can have more of an effect on how it shoots, but I'm thinking holding together at higher speed.
Is there any way to tell if I'm going too fast other than key-holing?
I can pull back if I need to, max at this point I would push would be in the 1150-1170 range, which is the max I have gotten with 124g jacketed so far.
On a side note, after some more research, I found this on Missouri's site a ways into the FAQ Section.
What is the maximum velocity of your .317 SnapWhizzle bullet?
I don't know. I don't own that rifle and if I did, I wouldn't be loading it to maximum velocity anyhow. I don't pontificate on topics about which I have no knowledge, so you're better off without my opinion anyhow, probably.
Generally, cast lead bullets at 18 BHN or higher will take 1400 fps from a 6" barrel, faster from rifle (30 fps per inch, approximately.) Coated bullets can probably be run faster. I don't guarantee it but I am told that this is the case.
The cast bullet literature is replete with writing on the subject of various loads for the different calibers. Do some research and you'll find the answers you're looking for.
Will be curious to see how the Brazos 13bhn hold up. It looks like the Missouri bullets should hold up just fine to me pushing.
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