May I suggest trying IMR4227?
It is one of the ones I have on hand, also, just haven't given it a shot yet
It is one of the ones I have on hand, also, just haven't given it a shot yet
Issues generating a fullhouse 357 load
- Thread starter jwalts27
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Shooter Magaven
Member
Blue Dot and Power Pistol will get pretty close too.
I like 2400 mostly. But 4227 has been real nice in my carbine. 140gr HNdy XTP is outstandingly accurate. But I get alot of unburnt trash using 4227 in my revolvers.
Most of the data I've seen for IMR4227 has been low velocity. I may be misremembering, but I thought I read that it is a fairly bulky stick powder, and it is hard to get enough of it in a .357 case to reach full velocity. I've read that it is better in .44 mag.
IMHO, 2400 isn't really suitable for mid velocity. It can do it, but is a bit of a waste of powder. The same results can be achieved with medium speed powders like Unique.
In my 2400 experiments in .357 + 160 LSWC, I've gone from 12.0 to 15.0 gr, settled on 14.0 gr. 15.0 was a bit too blasty for me.
IMHO, 2400 isn't really suitable for mid velocity. It can do it, but is a bit of a waste of powder. The same results can be achieved with medium speed powders like Unique.
In my 2400 experiments in .357 + 160 LSWC, I've gone from 12.0 to 15.0 gr, settled on 14.0 gr. 15.0 was a bit too blasty for me.
OP
jwalts27
Member
Thanks to Weatherby who just happens to live near me, he hooked me up with some H110. 16g behind a Bayou coated 158LSWC did the trick. Thanks
Shooter Magaven
Member
I did 16.3 g under 158 jacketed but I found 2400 did slightly better in the velocity department and the primers were not starting to crater.
But im curious, wouldn't that be too hot for a LSWC ? I was always under the impression that lead under (over ?) that much power would cause the bullet to over-obturate and ruin accuracy. Is this true? Or are you using a gas check or a hard cast lead?
Oh, wait, I just read that they were coated...does that make them better handle that heavy load? I have no experience with coated bullets. Coated with what? Powdercoat?
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OP
jwalts27
Member
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To be honest with you I just started using these Hi Tek coated bullets. Google Hi Tek. Supposedly you can push them just like a plated bullet. I always shoot plated with no issues and wanted to try some of these coated. $10 per 100 free shiping. I ran a few at 16.3 and saw no pressure signs or leading. I cant chrono them as the weather sux around here.
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Murphy's Law
Member
Try some 300MP and all your troubles will be gone if you want maximum velocity and accuracy with either 125 or 158 gr bullets.
fredj338
Member
Depends on the bullet hardness. Cast hard, you can run a conventional lead bullet at jacketed vel with good accuracy. Of course, fit is king, but I've shot 4" groups @ 100yds with my Bisely hunter using 270gr cast of just ww alloy running 1250fps. Probably room for another 100fps, but why?
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Shooter Magaven
Member
Thats good to know. Jacketed, i hear, will add some pressure and slightly lower velocity so my guess is that, that coated lead is sliding through the barrel with less resistance and likely higher velocities than jacketed and resulting in lower pressure (theoreticaly, of couse.)
If that load is accurate than you got a really good combo. I might have to try some of them painted pills.
BTW, whats your barrel length?
OP
jwalts27
Member
Thats good to know. Jacketed, i hear, will add some pressure and slightly lower velocity so my guess is that, that coated lead is sliding through the barrel with less resistance and likely higher velocities than jacketed and resulting in lower pressure (theoreticaly, of couse.)
If that load is accurate than you got a really good combo. I might have to try some of them painted pills.
BTW, whats your barrel length?
Gun is a 686 6" bbl
I did not see how far you were shooting these bullets. In my experience, if these are bevel base bullets you can run out of accuracy past 25 yds. The old standbys like H110 and W296 will get you to top end loads but accuracy is still the most important factor.
When the last round of shortages started I broke out a keg of WC-820 I had gotten for the .30 carbine and loaded LSWC 158gr gas checks with 14 grains of it. It runs about like H110. Used small rifle primers because that's what I had. Cases dropped free with no visible flaws.
Shooter Magaven
Member
Sorry, thought I could find some of my chrono data for 16.3 of H110 - 158gr JHP in my 6" trooper,
But all I got is 16" carbine 16.4 gr H110 - 158 gr LRFP Hard Cast velocity, which btw was avg 1770 f/s.
Scrateshooter
Member
I shot a top load of W296 with a Nosler 158gr JHP out of a 4" M66-2 and a 5" M27-2 and both got my attention. America!
Then I just bought some more factory 158gr JSP since current reloading data is not gaining much and the price difference didn't make up for my time and safety.
Then I just bought some more factory 158gr JSP since current reloading data is not gaining much and the price difference didn't make up for my time and safety.
