IMR 4350 , can it be used for cast ?

[Snapping Twig]

I've been shooting 57g IMR 4350 under a 180g GC RNFP RCBS mould with great success.

[softpoint]

Just today I shot some imr 4350 in one of my .358 winchesters. 47 grains under Saeco 245grain cast. Shoots pretty good inthat rifle. I haven't chrono'ed it yet, but may get to do that tomorrow........

[TEE]

Hey all,

Sorry to raise this one from the dead, but I can't seem to find what SEE stands for. I tried to look all over using searches, but ... you can imagine how common a word like see is. I imagine it's "pretty much terrible and you should never do it" but can someone tell me?

[RPRNY]

johnch

Note; All those, including myself, that successfully use 4350 with cast bullets are using heavier bullets at the top end of cast bullet velocities and with 80+% loading density. I don't consider these as "reduced" but as normal cast bullet loads. A "reduced" cast bullet load to me is a '06 down under 1500 fps for example. Guess it depends on your definition of "reduced" is.

Larry Gibson

This is a very important caveat and notice really need be taken of it.

[MT Gianni]

Secondary Explosive Effect. Basically the powder begins an ignition then the bullet somewhat retards that while the rest of the powder then ignites . This creates a large pressure wave or perhaps two waves that increase pressures dramatically, often beyond the guns designed capacity.
http://www.sportingshooter.com.au/as...fect-a-reality
http://www.africanxmag.com/secondary...ion_effect.htm
Some places to start your reading.

[Shopdog]

I use 4350 in a jacked up '06 170g varmint load out of a CDL. There usually isn't an exit "hole" on Ghogs.... it blows the whole far side off. There's nothing "reduced" about the loading. It will blow a crow into an indistinguishable V shaped,black and red mess!

I'd be called a liar for posting group size so ya'lls on your own. I sorta had to shelve it because of recoil.... in the short term(cardiology issues) but will be back on it in 6 months or so?

[TEE]

Secondary Explosive Effect. Basically the powder begins an ignition then the bullet somewhat retards that while the rest of the powder then ignites . This creates a large pressure wave or perhaps two waves that increase pressures dramatically, often beyond the guns designed capacity.
http://www.sportingshooter.com.au/as...fect-a-reality
http://www.africanxmag.com/secondary...ion_effect.htm
Some places to start your reading.

Thanks MT!! I recently picked up a savage 110e in 30-06 (my second savage 30-06). I normally load 57gn IMR4350 over 165 SGK for hunting. I loaded my last SGK and was pricing out more which hurt my wallet zone. I got the second 30-06 to play with cast without risking any learning damage to my primary hunting rifle.

At the same time, I have the LEE CTL312-160-2R and LEE C312-185-1R and a LEE C309-150-F. The only one that I’ve sent down range was the 160 out of my 303 Brit with 9.5gn Red Dot and this was less than 100 rounds. Given the lead I have collected, I thought maybe it’s about time to look into IMR 4350 under cast. Not reduced, that’s what the Red Dot is for.

I was looking to see if I could shoot cast close to as fast as jacketed without leading up my bore... or blowing up my face. I was playing with the idea of paper patching but just not there yet. Mostly, I really like my face the way it is.

A lbs of WW lead is a helluva lot cheaper than a lbs of jacketed bullets that’s for darn toots.

[Andy_P]

From the Lee Second Edition (2004) - not IMR4350, but H4350 and the obsolete slightly slower H450:



Shows loads from 100% fill down to about 50%. H450 fell between H4350 and H4831 - near Re19 in many cases.