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Post by z1r on Jul 12, 2024 17:55:05 GMT -5
If the bullet is too hard to obturate at the pressures it it is shot at, you essentially get leading due to gas cutting. A softer bullet will seal the bore and you get no blow by. Too hard a bullet, the bullet won't deform to seal the bore, and the hot gasses that get past the base are what lead to your leading problem.
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Post by eisenhower on Jul 12, 2024 17:55:16 GMT -5
The Desperado Bullets are BH 8-9 ... I'll give those a try and circle back with my results.
Thanks, folks.
DeWayne
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Post by z1r on Jul 12, 2024 17:56:22 GMT -5
That is about the load I use in my .44-40 and I use a 12 BHN bullet from Missouri Bullet with no leading issues.
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Post by eisenhower on Jul 12, 2024 18:00:40 GMT -5
What do you guys think about Brinnel 22 (Hunter's Supply) in my Bisley .44 Magnum, with 9.5 grains and ~1,000 fps? Is that still too hard for that velocity?
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Post by 470evans on Jul 12, 2024 18:12:54 GMT -5
The Desperado Bullets are BH 8-9 ... I'll give those a try and circle back with my results. Thanks, folks. DeWayne I'm looking forward to your results. |
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Post by Encore64 on Jul 12, 2024 18:21:47 GMT -5
I don't buy into the too hard theory if the gun has proper dimensions.
The only issue that's ever caused leading in my revolvers is undersized cylinder throats.
That one makes sense as the bullet is undersized to the point that it doesn't seal off in the rifling.
I've shot very hard cast in my 45 Auto Rims and never a problem.
I've read about soft cast being beneficial in revolvers that have oversized bores. This includes some hollow base designs to expand and seal the bore.
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Odin
.375 Atomic
Posts: 1,103
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Post by Odin on Jul 12, 2024 22:24:39 GMT -5
I don't buy into the too hard theory if the gun has proper dimensions... This is why I think I got away with 22BHN cast bullets when I first started handloading. The gun is a BFR in 475L and the slugs came from Montana Bullet Works. I shot a ton of those bullets slow and easy. Never saw a lick of leading. |
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Odin
.375 Atomic
Posts: 1,103
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Post by Odin on Jul 12, 2024 22:41:44 GMT -5
What do you guys think about Brinnel 22 (Hunter's Supply) in my Bisley .44 Magnum, with 9.5 grains and ~1,000 fps? Is that still too hard for that velocity? What bullet/weight? What powder? What is the bullet diameter? What do the throats measure? I'm probably in the minority, but I've never paid a lick of attention to bore diameter. I personally steer clear of using fast powders for anything over 950fps or so, but I've got a decent range of powder to choose from... and there's more at the Hardware should I feel the need. At 1000fps, Unique and it's neighbors are right at home. |
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Post by sixshot on Jul 13, 2024 1:19:21 GMT -5
Guess I'm in the minority too because I almost never pay any attention to bore diameter but I do listen to the throats talking to me. Most of my bullets are cast anywhere from 7-12 BHN with the exception of hunting in Africa, then I bump up to about 17-18 BHN. I probably haven't cleaned a barrel in 3-4 years, I do if it needs it though. I do keep my cylinders clean & oiled & also the ratchet, work done!
Dick
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Post by Encore64 on Jul 13, 2024 4:54:46 GMT -5
It's always interesting to read different procedures and techniques that work for different people.
It's a definitive sign that we've all been self taught and learned from experience.
Of course, many (most) of us came up long before the internet and information sharing wasn't easy or even possible.
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Post by eisenhower on Jul 13, 2024 9:18:47 GMT -5
What do you guys think about Brinnel 22 (Hunter's Supply) in my Bisley .44 Magnum, with 9.5 grains and ~1,000 fps? Is that still too hard for that velocity? What bullet/weight? What powder? What is the bullet diameter? What do the throats measure? I'm probably in the minority, but I've never paid a lick of attention to bore diameter. I personally steer clear of using fast powders for anything over 950fps or so, but I've got a decent range of powder to choose from... and there's more at the Hardware should I feel the need. At 1000fps, Unique and it's neighbors are right at home. For the .44 Magnum: 240 grain RNFP; 9.5 grains Titegroup; Bullet Diameter .431"; Bore Diameter .429"; Throat Diameter .431". So, I'm questioning if the Hunter's Choice in .431" (powder coated with NO lube) will lead. I'll report back when I know. |
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Post by sixshot on Jul 13, 2024 11:55:50 GMT -5
Huey is correct, at least here on Single Actions Forum we discuss & share ideas without arguing like they do on many forums. Some places it's a spitting match after 3-4 replies, who wants that?
Dick
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Post by Encore64 on Jul 13, 2024 12:12:13 GMT -5
Huey is correct, at least here on Single Actions Forum we discuss & share ideas without arguing like they do on many forums. Some places it's a spitting match after 3-4 replies, who wants that? Dick I've learned and continue to learn on here daily. Unfortunately, I've still got one revolver that refuses to shoot Cast Bullets!!! I've tried everything I know and every suggestion I've received. An O.M. Blackhawk 30 Carbine. With jacketed bullets it's an absolute tack driver. |
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Post by bigbore5 on Jul 13, 2024 13:49:40 GMT -5
What do you guys think about Brinnel 22 (Hunter's Supply) in my Bisley .44 Magnum, with 9.5 grains and ~1,000 fps? Is that still too hard for that velocity? I shoot 11bhn hollow points and 15bhn solids at those velocities with excellent accuracy and expansion. Your gun will tell you what it likes. |
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Post by bryanaustin on Jul 13, 2024 14:29:27 GMT -5
22 BHN is too hard for most shooting & you are getting gas cutting. Unless you are really leaning on your loads don't buy bullets that hard & try to shoot them slow/medium. A bullet that's 8-9 BHN & powder coated will cover most of your shooting needs. As your velocity goes up, then the hardness needs to go with it but a 22 BHN is very seldom needed. Dick (44-40) I also keep trying to inform that hard cast bullets larger than the barrel's bore creates higher pressures. Not necessary an issue if loading lighter than max loads. Winchester used .4255" jacketed bullets and .427" soft lead bullets. Winchester also mentioned using pure lead when hand casting. With bores ranging from .4225" to .433", the soft lead would expand into the larger bores when loaded to create the pressures needed, but soft enough to not increase pressures beyond max. The .4255" JSP was small enough to not increase pressures in the .427 bores, but large enough in the .422" bores to hinder such pressures. Thus over the years, Winchester lowered the charges to below max loads, unlike in the old days. I would not use jacketed or hard cast bullets larger than the bore. I use .428" wheel weights in .429" bores in my 300 yard targets with the rifle, but this is using slower burning rifle powders. Using faster burning pistol powders and the aforementioned oversized hard cast bullets bullets will eventually bite your ass. |
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