Author Topic: 45-90 project begins  (Read 2244 times)

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Offline bajabill

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Re: 45-90 project begins
« Reply #30 on: July 12, 2010, 06:48:51 AM »
 finally, soon was actually about 3 months  ???

with same day data, I am pushing a 405 lead bullet 1525 fps in the 45/90 compared to 1375 in the 45/70 - using 777.

Thats 150 fps more and gets me to about 2000 ft-lbs of energy which is a good plateau I am happy with for the black powder substitute.

Offline NFG

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Re: 45-90 project begins
« Reply #31 on: July 12, 2010, 07:50:59 AM »
The 45-90 and the 458 WM are kissing cousins for all intents and purposes with almost identical case capacities so you can use 458 WM reloading data... AS LONG AS YOU KEEP THE PRESSURES WITHIN THE CAPACITY OF THE NEF FRAME......I'm almost afraid to post that information to keep someone from using the 458 WM max data and getting hurt.

Whether or not you need to throat depends on the bullet weight and shape you want to use. RN's and WFN bullets are shorter and hit the lands quicker so the bullet is seated deeper in the case...the pointy ones can get away with longer COAL's, seated less deep which will gain you more powder room.

I think the 45-90 is the best "compromise" between case size, bullet weight, velocity and recoil, for me at least.  You can still shoot the heavies, 600 plus gr bullets at much higher velocities than in the 45-70 AND you can shoot the lighter and midweights and MUCH higher velocities than the -70 so get much more smack for your buck.  I shoot more -90 cases with 450 gr plus/minus 25 gr in my 45-120 than the larger -120 case and 720 gr T-Thumpers.  A 450 gr slug seems to hit the magic place of higher velocity/striking energy compared to a 405 gr or 525, but that could also just be the load I worked up.

For those who want to bother checking and contemplating...a slightly lighter bullet, i.e., 450 gr  compared to a 500-525 gr, at a higher velocity "might" give you a higher striking energy at the ranges you are shooting and all the penetration you need ...you just have to let your fingers do the walking through the ballistics tables.

Luck

Offline bikerbeans

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Re: 45-90 project begins
« Reply #32 on: July 12, 2010, 01:19:22 PM »
baja,

how was the cleanup using the 777?  I have watched my friend have to swab the bore after every shot in his 50 cal MZ when using 777.  If he didn't he couldn't get the bullet seated without beating on the ramrod with a piece of wood.  I've tried the BH 209 in a 45/70 cartridge and the cleanup is that same as smokeless, however BH209 didn't shoot that accurately in my gun, plus it cost a lot.  I am thinking of loading some smokey cartridges for my 45/120 and I have noticed that their is at least one company selling loaded 45 caliber rifle cartridges that are propelled by 777.  I might have to try the 777 if it isn't too much work to keep the gun clean.

Good luck with your new gun and congrats on finishing your project. ;D

thanks

BB
RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

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MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline bajabill

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Re: 45-90 project begins
« Reply #33 on: July 13, 2010, 05:38:47 PM »
cleanup was simple

Offline Swampman

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Re: 45-90 project begins
« Reply #34 on: July 16, 2010, 10:00:07 AM »
Now that I have 2 .45-70 Handis, this is very tempting.
"Brother, you say there is but one way to worship and serve the Great Spirit. If there is but one religion, why do you white people differ so much about it? Why not all agreed, as you can all read the Book?" Sogoyewapha, "Red Jacket" - Senaca

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