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I have a a Lyman 44-40 Gas check mold that cast a 238gr bullet w/GC. Loads for the 200 gr bullet are common. But not for heavier bullets. I am using IMR 4227 and Alliant 2400 powder. Would any of you folks have any experience with heavier bullets in 44-40 in a model 92 Winchester. Especially 2400 both a plinking load 1200-1300 fps and a deer load around 1550 fps.

Thanks Jeff
 

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Hi, Jeff:
Alliant shows 12.0 grains of 2400 for 1130 fps at 12,500 CUP and 23.5 grains of Reloder 7 for 1290 fps at 12,100 CUP. This is with a 24" barrel.

Now here's where it gets dangerous. Lyman has a number of loads with 200 and 220 grain bullets that go to 21,000 CUP for the Winchester 92 and other strong rifles. However they're using pistol powders and aren't getting 1500 fps. Using the usual rule of thumb that pressure increases at the square of the velocity indicates that 1550 fps needs about 22,800 CUP. 1550 fps doesn't look doable with 2400, and I don't know if you could get enough Reloder 7 in the case.

Bye
Jack
 

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Discussion Starter #3
44-40

Thanks for your reply
A 1958 Lyman cast bullet manual list there #429434 GC bullet with 24-28 grains of 2400 or 4227 with up to a velocity of 1850 fps in a Model 92. There starting load for both is 24 grains. I have used the bullet with up to 22 grs of 4227 for 1470 fps. I wish a similar load using 2400 to get to 1550 or so. There is a lot of contradictory data out there and that the case is hard to load, very fragile, prone to seperate etc. I have found that to be an exageration. I am sure due to the age of the rifles and the different rifle types out there data is kept on the light side. There should be a happy and safe medium ground.
Jeff
 

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44-40

Jack
How can I extrapolate data for my Lyman 215 gr. (actual weight 238gr. GC bullet) using 24000 & 4227.

I feel 21 grs 2400 should be safe as 22 g of 4227 is ok.
My problem is the heavier bullets creating more pressure.

2175 fps is amazing, faster then a 35 Rem. with a 200 gr bullet.

Jeff
 

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My 44 WCF loads have not exceeded 22.5/2400. I believe that 26+ grs would be a compressed load,possibly raising pressure to a dangerous level.Although the original '92 Winchester is a very strong action, one would have to consider age and wear as determining factors when loading to higher velocities.:)
Mike
 
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