National Gun Forum banner
61 - 66 of 66 Posts

·
Last Stand on Earth
Joined
·
4,281 Posts
Discussion Starter · #61 ·
I always like my S&W Model 57 although the foam in my presentation case disintegrated. It was fun to shoot but a lot of people viewed it as the lesser stepchild of the .44 Mag.
I could see that. I need a revolver for .41. I don’t really see it as a lesser .44. It’s a happy medium between .357 and .44.

The second try for Sierra 210 JHC with 20.5gr IMR4227 produced the following from the 20” Henry…

Round 1: 1600 fps
Round 2: 1619 fps
Round 3: 1613 fps

I don’t think I could have called that closer. Really tightened up the velocity spread too.
 

·
Last Stand on Earth
Joined
·
4,281 Posts
Discussion Starter · #62 ·
I am still pondering the .41 special load. With H110, I reduced the 41 mag max load by 4.0gr. If I do that with the IMR 4227, that put it at 17.5gr vs the 18.0gr of H110. Two things to note though, while the charge weighs are very close, the IMR 4227 loads are crushed loads. Second, the IMR 4227 loads are marginally higher pressure than H110 by 1,500 CUP at both the top and bottom of the load ranges. Probably sleep on it and look again tomorrow.
 

·
Last Stand on Earth
Joined
·
4,281 Posts
Discussion Starter · #63 ·
Well, this is the second time if entered this information…

I tried Lil’ Gun instead of 4227. The max load for 41 magnum was 22.5c with a lower pressure of 29,000 cup. Significantly lower than 4227 by 21%. I reduced the load by 4.0gr to bring the powder level down to a compatible level in the 41 special brass. The results were undesirable…

Lets start with the bullets maximum published velocity of 1300 fps. I can expect that at the same pressure with a slow burning powder to increase a 1300 FPS load to 1500 fps from a 20” barrel. That’s to be expected. The 1600 FPS loads above are pushing that envelope. When compared to the published velocities for 41 mag in the book, reduced load and the shorter cartridge I expected 1500 fps min and 1600 fps max.

210gr Sierra JHC test rounds from the Henry 20” 18.5gr of Lil’ Gun

Round 1: 1616
Round 2: 1698
Round 3: 1794

Every shot exceeded my expected velocity. 1800fps is way faster than I expected. According to the book, it takes about 3.0gr of powder to make that kind of difference in velocity from low to high end of the data.

Combine the velocity of that last round and the bullet jump from the shorter case and it left me a present in the chamber.

Jewellery Natural material Circle Metal Asphalt


Body jewelry Jewellery Natural material Nickel Wood


That be the jacket south of the roll crimp. The jacket on the back side of the bullet left with the bullet.
 

·
Last Stand on Earth
Joined
·
4,281 Posts
Discussion Starter · #64 ·
Ok, now I am thoroughly confused. What I thought was max velocity was max BC at velocity. That was my mistake. I can’t find anywhere where Sierra makes an actual max velocity claim. The load data site is showing loads with this bullet routinely over 1600 fps and even breaking 1800 fps. If that’s true, this bullet should not have come apart.
 
61 - 66 of 66 Posts
Top