Need Load info

[Boerrancher]

I am needing some load data. In a day or two my 255gr RNFP mould will arrive for my 45LC. I am needing a good load for it using Unique powder. I am shooting out of a Blackhawk, so I can use the hotter loads, I just would rather not exceed 20,000 C.U.P. loads. I can switch to AA#7 if I have to as I have the ruger load data for it, but would rather shoot Unique, if a suitable load is out there to be had.


Thank you and Best wishes from the Boer Ranch,

Joe

[Heavy lead]

I use 10 grains of Unique behind a Fed 150 primer with a 270SAA RCBS weighing at 285 lubed. This is a soft boolit almost pure lead and shoot it in all blackhawks and 2 Smith 25's. This is reported to be at 20,000 psi, but I have no pressure measuring equipment. I do know that brass lasts seemingly forever with the load. It chrono's at on average 1075 out of 5 different revolvers, mostly 5.5" and 4.75" barrels. I also use the Lee 255RF with only 8 grains for a load out of my 625 mountain gun as it kicks a lot less. They both are accurate and clean. I like Unique and don't find I need much else for most of my handguns. I haven't done any chonograph work for the lighter load, but I'm sure it's only around 14,000 psi or so. Don't see why the 10 grain load wouldn't work fine with that 255 boolit though.
Good Luck!

[oneokie]

From Lyman 45th.

255 grain cast, #454424, #2 alloy
Colt SAA, 5.5"

Unique
Start-8.0gr @ 847fps
Max-10.0 @ 1011fps

[missionary5155]

Greetings Boerrancher My old Lyman Cast Boolit Manual (1973) shows a 255 Gr. # 454424 (#2 alloy) 6 gr Unique -590 fps up to 8.5 Gr at 845 from a 7 1/2 Ruger Black Hawk. So I would recon about 10 grains will get that slug going around 1000fps. I would wonder why the manual did not list a hotter load ? Unless they were concered about people hot rodding the old BK Powder Colts.

[leadeye]

10 grains Unique with an RCBS 250 grain FN works very well. I agree with Heavy Lead, I lose more cases in the weeds than I do to wear. It is also a good load for my Henry.

[XBT]

Another vote for ten grns. I’ve been using ten grns. of unique with a 265 grn. SWC boolit cast from a 50/50 mix of WW/pure lead. This chronographs at 1050 FPS in my 5½" barrel Redhawk and shoots very well.

[Hipshot]

I get 1075 fps. with 10.1 gr. unique in a 5 1/2 Blackhawk with a 255 gr. cast. It will do just about anything you want it to do with mild recoil. I have shot 3 hogs with that load and got complete pass through at 3 different angles.

Hipshot

[Snapping Twig]

I'm a big fan of 250g RNFP or Keith over 9g Unique. Somewhere in the 900fps area, just like the original BP load.

I've also tried 7.5g W231 under the same bullet, felt good and shot very nicely.

[monadnock#5]

The Lyman Cast Bullet Handbook lists 11.5 grns Unique @1185 fps as the top end load for Ruger and T/C only. No CUP data is given. Win cases and primers.

[Boz330]

10gr here as well. 4 3/4 BH.

Bob

[Bob Krack]

I am needing some load data. In a day or two my 255gr RNFP mould will arrive for my 45LC.
JoeJoe, (or anyone else)

I would be extremely interested in hearing the "as cast" specs with your alloy in the 255gr RFNP.

Mine throws a .453 247gr slug.

Thanks

Vic

[.45Cole]

I wouldn't use AA #7, all the data that I have looked at show #5 as beating unique out for rifle velocities (but only with 250 or larger boolits) and often by 100 fps (like ~1150fps with high thirty some percent load density) These loads should be heavier than SAA pressure, but medium for the B.H. I am going to purchase a pound at the show this wkend to try myself. Leadeye- how does the Henry shoot, like at 200+ yds? Brother is considering one.

[leadeye]

I wouldn't use AA #7, all the data that I have looked at show #5 as beating unique out for rifle velocities (but only with 250 or larger boolits) and often by 100 fps (like ~1150fps with high thirty some percent load density) These loads should be heavier than SAA pressure, but medium for the B.H. I am going to purchase a pound at the show this wkend to try myself. Leadeye- how does the Henry shoot, like at 200+ yds? Brother is considering one.

I have only shot the Henry to 100 yards and that was using a tree as a side rest. It grouped 4-5 inches using a RCBS 300g GC on top of 21 grains of 296. The weight of this rifle makes it a steady shooter although the trigger is a little creepy compared to my Marlin 1894 with the WW trigger. They sure look nice but I will be taking my Marlin to the deer woods, it is more of a recreational rifle that I shoot with my Blackhawks.

[KCSO]

My 1890's era Ideal throws .457 bullets and they work great as plinkers for the 45-70. My modern Lyman throws .453.

[runfiverun]

joe
if that's the lyman mold. i like 8-10 unique.
6-8 titegroup
5.0 grs of clays
19 gr 2400.
8 grs 800-x
12 grains of steel powder, my own load and it can be taken from here. no data for steel.
and finally 10 to 12 grs sr-4756 yes sr-4756.
nice load and deer don't like to see it coming. you can use a 250-xtp with this load also.

[wiljen]

Unique up to 10.0gr
AA#7 up to 16.5gr

Per QL if you wanna stay under 20,000 PSI

[Boerrancher]

Well Fellas, my mould arrived via FedEx this morning, but I just opened the shipping box about an hour ago. It looks good, and should cast some really nice boolits with out too much if any Leementing.

It looks like I will be shooting 10 gr of Unique or there about. I shoot 11.5 grs of Unique on a 230 gr RN, and it is a bit hot for my taste but shoots good in both my rifle and pistol so I keep shooting it.

I thank each and every one of you for your replies.

Best Wishes from the Boer Ranch,

Joe

[Tom Herman]

Hi Joe!

I use 8 grains of Unique with my 255 gr SWC, Federal 150 primer, and home made SPG lube. Works great in all my revolvers, but the round is too long for my Taurus Thunderbolt.
Let us know how your RNFP mold works out. I have a sneaking suspicion that I'm going to buy one for the Taurus.

Happy Shootin'! -Tom


I am needing some load data. In a day or two my 255gr RNFP mould will arrive for my 45LC. I am needing a good load for it using Unique powder. I am shooting out of a Blackhawk, so I can use the hotter loads, I just would rather not exceed 20,000 C.U.P. loads. I can switch to AA#7 if I have to as I have the ruger load data for it, but would rather shoot Unique, if a suitable load is out there to be had.


Thank you and Best wishes from the Boer Ranch,

Joe

[yondering]

Like the others said, you can't go wrong with 10 gr Unique. I've used 8gr up to 12gr with a 255gr boolit in my blackhawk, with not much change in POI between those charges, at shorter ranges anyway. Anywhere in there will work, adjust for the power level you want.

[Boerrancher]

As some of you know from other conversations with me I have been very busy with hay and farm equipment the last 5 days, so I haven't had any time to really mess with my mould, until yesterday morning. I casted up 20 boolits and tossed the first 5 back in the pot. I know that 15 good boolits is not hardly worth heating up the pot for but it was all I had time for. I sized them down to 451 and lubed them in the lube sizer. Last night after dark I loaded them up with 10 gr of Unique. I would normally let my boolits sit for a few weeks after lubing and sizing them, but I just couldn't help myself.

I took my Mod 92 out this morning along with 5 rounds while I was out on the 4 wheeler checking on all my critters. I went to the field I had just finished cutting and set up 5 fist sized rocks on the tops of some fence posts, and backed off to the other side of the field. The field is a hair over 150 yards wide. At about 140 yards I busted 3 out of the five rocks. I know that Minute of fist sized rock is not punching paper, but considering I was doing it off hand with the iron sights I don't consider 3 out of 5 bad work at all. I have no idea what happened with the first two. They were way out in left field. The only thing I can figure is I had a clean bore and the first two were foulers that put it where it needed to be.

Best wishes from the Boer Ranch,

Joe

[runfiverun]

joe my 92's both like 452 a bit better than 451.

[Boerrancher]

joe my 92's both like 452 a bit better than 451.

I sized to 451 for years with mine, bumped it up to 452 for it and my black hawk, and was not happy with the performance of either, so I broke down and slugged both of them. The 92 slugged out at 449, and the black hawk slugged out at 450 with all of the throats at 451. I recently went back to 451, and tightened up my groups by over an inch. Don't quite understand why, but I am not going to mess with something that works, but thank you for the tip any way.

Best Wishes from the Boer Ranch,

Joe