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I’m shooting a new 30” Hartford Shiloh. Isn’t it 18” twist? Would this be as good with an 18 twist?Dennis Armistead wrote: ↑Sat Feb 04, 2023 9:13 pm I agree 100% with Steve. The JIM459542M5 is the bullet I would go with in a .45 2.1 if I was looking for a 1000 yd round in a 16 twist barrel.
Dennis
Dennis, I just read about your bullet. It says three reduced driving bands. The first two are bore diameter, and that makes sense, but the third band is .454? How would you load this bullet? Wouldn’t you have to load it in the case like a bullet with two fully reduced bands? If you left it hang out like three fully reduced bands, the third band would run into the rifling and not want to go further, thus preventing it from fully chambering.Dennis Armistead wrote: ↑Sat Feb 04, 2023 9:13 pm I agree 100% with Steve. The JIM459542M5 is the bullet I would go with in a .45 2.1 if I was looking for a 1000 yd round in a 16 twist barrel.
Dennis
I wish I’d have known that a 16 twist was an option when I ordered this 2 years ago. I’d have certainly went with the faster twist. That was never offered to me and I didn’t have to choose between the two. It should be an option that you have to pick on or the other, thus forcing you to educate yourself on the proper choice. DangDon McDowell wrote: ↑Sun Feb 05, 2023 11:26 am I can tell you with pretty good certainty gained from a bunch of burned powder and lead down range in 18 twist 45 barrels, once the bullet length starts passing the 1.42 the winds can deal you some real misery once past the 600 yard mark. The only exception is the 2 7/8 case but even then it's not uncommon to detect profile hits and egg shaped impact at the 1000 yard line.
16-1 alloy will be your friend for serious accuracy, 20-1 and 18-1 will work, but 16-1 generally wins the day.
Edit to add the 1.42 and shorter even work well in the 16 twist.
Thanks Dennis. With the 16:1 hardness, will I have any problems loading thr m5 .459 with the .454 third driving band?Dennis Armistead wrote: ↑Sun Feb 05, 2023 4:35 pm Don't let that 18 twist barrel leave any doubt in your mind as to it's accuracy potential. Just load a projectile with the correct length bearing surface so it remains stable at the long line. If the round has a velocity in the 1300 fps range or faster in the Money bullet nose profile, I would use 16:1 or maybe just a little harder to prevent nose slump. Not to hard or you'll get gas cutting. The M5 is a great bullet for the 2.1 because you gain more room for powder. 2F Swiss is good to use. Just so you know, you'll need to wipe in between shots with this bullet, no blow tubing. Good luck.
Dennis
No problems engaging. When setting the COAL I leave it a little long, about 1/2 the thickness of the rim. You shouldn't need a camming tool to load, just thumb pressure. I do run these through a .458 sizing die so I have equal neck tension. Make sure you anneal your brass for consistent gas seal. If you find black soot around the neck after firing, the neck is to hard.A Atwood wrote: ↑Mon Feb 06, 2023 9:36 amThanks Dennis. With the 16:1 hardness, will I have any problems loading thr m5 .459 with the .454 third driving band?Dennis Armistead wrote: ↑Sun Feb 05, 2023 4:35 pm Don't let that 18 twist barrel leave any doubt in your mind as to it's accuracy potential. Just load a projectile with the correct length bearing surface so it remains stable at the long line. If the round has a velocity in the 1300 fps range or faster in the Money bullet nose profile, I would use 16:1 or maybe just a little harder to prevent nose slump. Not to hard or you'll get gas cutting. The M5 is a great bullet for the 2.1 because you gain more room for powder. 2F Swiss is good to use. Just so you know, you'll need to wipe in between shots with this bullet, no blow tubing. Good luck.
Dennis
I really appreciate the help fellas, and I am listening.