Heavy Bullets in the B92 Part II Range Session

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1886
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Heavy Bullets in the B92 Part II Range Session

Post by 1886 »

I have been wanting to experiment with heavy cast bullets the B 92 .357 mag. for some time. I ordered some custom expanders from Buffalo Arms. While waiting for the expanders to arrive, I did some informal testing with the Mt.Baldy 230gr WLNGC and the Cast Performance 200gr WLNGC. Preliminary tests showed promise. I also tested a Speer semi wadcutter 158gr H.P. I have used this bullet around the house to dispatch several unwanted, rabid, "visitors" in the past month. These visitors weighted between 18lbs-30lbs. Performance was quite deadly.
Load one to the left featured W/W brass, CCI-550 primers, Mt. Baldy 230gr WLNGC bullet sized .358", 11.5grs of 296. OAL is 1.590". I applied a heavy crimp with the Lee FCD. I used a .353" expander from Buffalo Arms. Velocity ran from 1322 fps- 1302 fps. Very consistent. Targets were shot at 50yrds from the bench. Conditions were horrible. Very windy. In fact so windy the target was pushed several times by the wind. My eyes were consistently watering from the wind blowing directly in them. While this bullet is quite accurate and ballistic consistency is great, I feel this bullet is not optimum for the factory B92. It would probably be the bee's knees in a B92 modified to handle rounds longer than SAAMI spec.
Load two was assembled with similar components and technique except I used a Cast Perf. 200gr WLNGC bullet propelled by 14grs of 296. This load was not sufficiently compressed for optimum results. I could have fit at least one more grain of powder in the case. I will try this in the future. Velocity ran from 1557 fps- 1536 fps. Again very consistent. This is the bullet I would chose for a high performance cast load in the unmodified B92 .357.
Load three is my plinker/loafing load. I used W/W brass, Rem. 5 1/2 primers, .358" expander from Buffalo Arms, Speer 158gr semi wadcutter sized .358", and 4grs Trail Boss. Light crimp applied with the Lee FCD. Again OAL was 1.590". Velocity ran from 953 fps- 921 fps. Very consistent. This is a superior light load.
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Sorry for the less than adequate pics, the conditions were less than optimum. I used the chrony without the sky screens. Too windy to use them. Group one, to the left, shows the Mt. Baldy 230gr bullet. Group two, in the middle, shows the Cast Perf. 200gr bullet. Group three, to the right, shows the first round striking high. This group was shot with the Speer 158gr bullet. It was coated with some moly? type of substance. This no doubt caused the first round to strike high. No sight adjustment was made from group to group. They all shot pretty much to point of aim. This trait makes this gun even more handy. I did change the factory rear sight to a Marbles full buck carbine style sight .350"-.550". The factory sight was totally useless being much too short. The last pic. illustrates the length of the various projectiles in relation to the case.
AS USUAL, THE ABOVE LOADS ARE JUDGED TO BE SAFE IN MY RIFLE AND MY RIFLE ONLY. DO NOT USE THEM IN YOUR RIFLE. Regards, 1886.
Last edited by 1886 on Thu Dec 25, 2008 1:49 pm, edited 1 time in total.
Chuck 100 yd
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Chuck 100 yd »

:D Great report! :D
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J Miller
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Re: Heavy Bullets in the B92 Part II Range Session

Post by J Miller »

1886,

That's a pretty good set of bullets there. I can picture the one on the right being in the case, but the other I can't. Do you suppose you could post pics of the loaded rounds?

I love those tiny groups. I'm not sure I could do that good even in good weather.

Joe
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1886
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Re: Heavy Bullets in the B92 Part II Range Session

Post by 1886 »

J Miller wrote:1886,

That's a pretty good set of bullets there. I can picture the one on the right being in the case, but the other I can't. Do you suppose you could post pics of the loaded rounds?

I love those tiny groups. I'm not sure I could do that good even in good weather.

Joe
I can load them and post the pics. It really does show just how much performance the .357 mag. is capable of producing in the carbine. Very impressive for a "toy gun". I would like to try some penetration tests with these bullets. 1886.
1886
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Re: Heavy Bullets in the B92 Part II Range Session

Post by 1886 »

1886 wrote:
J Miller wrote:1886,

That's a pretty good set of bullets there. I can picture the one on the right being in the case, but the other I can't. Do you suppose you could post pics of the loaded rounds?

I love those tiny groups. I'm not sure I could do that good even in good weather.

Joe
I can load them and post the pics. It really does show just how much performance the .357 mag. is capable of producing in the carbine. Very impressive for a "toy gun". I would like to try some penetration tests with these bullets. 1886.
Image
The bullet to the left is the 230gr. It is .970" long!
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Grizz
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Grizz »

1886

Great report and fantastic exploration. I love that 230g load. I'd like to see the relative drop at 100 yards, hope you test that soon.

Makes my 185g cast load seem ho-hum. Thanks for posting. Your pictures are great, just like being there, 'cept warmer. ;)
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Warhawk
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Warhawk »

I'm going to have to order some of those 200gr Cast Perf bullets. I'll bet they would be just the ticket for wild hogs.
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O.S.O.K.
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Re: Heavy Bullets in the B92 Part II Range Session

Post by O.S.O.K. »

Great report. That Cast Performance 200 grianer is a winner!

I once trimmed some 38 special cases so that they would crimp into the groove on a standard 200 grain .358" hc bullet meant for the 35 Rem. The ocl was thus standard for the .357 Mag. I didn't chronograph it but it was very accurate. The load was rather mild in comparison to your's.

Your heaviest loading is basically equivalent to a 44 Mag from a 4" revolver, only with a much higher sd.

I really do think the .357 Mag carbine is optomized with a hard cast 180 grian bullet at 1800 fps without pushing it, which delivers almost 1300 ft lb.s. I've got some 180 Horn XTP loads that do over 1600 and those too would be good 100 yard deer medicine with a little over 1000 ft lb.s energy.

Of course, the heavier loads will have more inertia and may penetrate better than the 180 hard cast but that would need to be tested - there is a balance point. Without proof, I suspect that the 180's pushed to that speed are the very best balance of weight and speed for the cartridge in a carbine though.

But I might be wrong - that 200 grain looks very promising!
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Ysabel Kid
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Ysabel Kid »

1886 -

Great range report! :D I'm still trying to imagine any load not being sufficiently compressed with either the 230-grain or 200-grain bullets! Man those are HUGE! :shock:
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1886
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Re: Heavy Bullets in the B92 Part II Range Session

Post by 1886 »

Ysabel Kid wrote:1886 -

Great range report! :D I'm still trying to imagine any load not being sufficiently compressed with either the 230-grain or 200-grain bullets! Man those are HUGE! :shock:
I went back to the reloading bench with the 200gr Cast Perf. bullet. I was able to stuff an additional 1gr of 296 in the case. The compression felt perfect at 1.580". I will also try 15.5grs at 1.590". Either of these loads should prove to be perfect. I will shoot them tomorrow. 1886.
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Ysabel Kid »

1886 wrote:
Ysabel Kid wrote:1886 -

Great range report! :D I'm still trying to imagine any load not being sufficiently compressed with either the 230-grain or 200-grain bullets! Man those are HUGE! :shock:
I went back to the reloading bench with the 200gr Cast Perf. bullet. I was able to stuff an additional 1gr of 296 in the case. The compression felt perfect at 1.580". I will also try 15.5grs at 1.590". Either of these loads should prove to be perfect. I will shoot them tomorrow. 1886.
I'm looking forward to the updated range report. Sounds like you'll be spot on!!! :D
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Re: Heavy Bullets in the B92 Part II Range Session

Post by Tycer »

Cool! Thanks for posting!
Kind regards,
Tycer
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