Looking for advice from those with a 450 #2 that have used Re 15 with 480-500 gr, bullets and 350's. My rifle is regulated for the 80 gr Cordite load. Using the 1.19 formula comes out to 95 gr of R15, I'll start a bit lower, but wanted some real world feedback from those who have used it in this caliber. I have used R15 for years in my 450/400 and hope it will work well in my new/old rifle. Thanks! Lee.

Should work just fine. I've been shooting and hunting with my Lang 450 no2 for 20+ years. I prefer 4831 and 105 grains but your RL will work fine. I will be selling six pounds of RL 15 at the gun show this weekend as 4831 has worked so well for me since the 1990s.

Cal

Thanks Cal, I was kind of hoping to get some feedback on results , issues etc. Just not much info out there.

You need to contact Tony Black,or NE 450 No2,he shot a 450#2 for years,we don't see him post much anymore ,but he is the guru,shared many a happy campfire with him .

found this in search. New rifle? Here's what I found:I shoot a Champlin Famars in 450 # 2. If I remember correctly it was started in 1989 and completed in 1991. Articulated trigger and ejectors Gold inlaid rear sight and just dot the i in the express sight. Which is 120 degrees wide angle. I have shot Hornady solids, softs, woodleighs, barne's TSX, northfork cup points. All bullets went from 450 to 480 to 500gr Using RL-15 shooting 86,88, 89 grains of power and 5 grains of filler.
The harmonics in my gun are unique I shoot all the loads with the above charges and bullets and no tweeking required. Shot every thing from groundhogs to elephants with it. Even a black mamba.

from tony black post:I too have a British double in 450 No2.

The 450 No2 case is so large that no matter what powder you use you must use filler.

I have good loads with IMR 3031, IMR4831 and RL 15.

My favorite powder with the 450, 480 and 500 gr bullets is RL 15. I use a foam plug cut out with a 50 BMG case. Dacron poly will also work. Which ever filler you use it must be compressed.

I use 89 grains of RL 15 with the 450 North Forks, and 88 grains with 480 Woodleighs, Soft and Solid, and 500gr Swift A Frames, 500gr Hornady Soft and 500gr Hornady old style Solids.

With 350 gr Hornady RN I use 81 gr of IMR 3031, with filler of course.

Don't forget you can use Norma 203B as well. I suggest a foam plug to hold the powder against the primer. I can send you a few.

I am pretty sure that both Tony and Mikes guns were 75 gr. regulated guns, mine is an 80 gr. I finally got to take it to the range yesterday and it showed promise with a 95gr. R-15, 480 Woodleigh, but it really liked that load with a 350 gr hard cast gas check bullet. When I have more time for the range, I will try some more loads. Thanks for the replies! Lee.

I agree all is well, especially with Cals post..

I will add one thing for what its worth, I found recoil was less with RL-15 and 4350 than 4831 in all doubles that I shot, how much probably depends on the shooter, neither bothered me but senced it, but I shot a good deal and hunted a lot back in the day and recoil is personal. It might be a factor with some..My guns were more accurate with 4831 and I used the old 4350 DATA 4831 powder of WW2..still do..

I tend to get better results with RE15 in 500/450 and 375 Flanged Mag as I did also with my 500 3 1/4” than H4350. Using a Kynoch wad above .400.

Happy shooting.

That 1.19x multiplier with RL15 yields me 2230fps average from my 470 with 25.5” barrels. In other words, it’s too much of a good thing. Don’t even think of trying that multiplier with the 577 and 600. You will be in the upper 40,000s or lower 50,000s psi. Try a 1.1x multiplier and work up to regulation in your rifle.

I have a 450#2 made by WR&Co back in 1905. I use North Fork 500 gr Softs over 92.0 gr of RL15 and get approximately 2,120 FPS. I also load Swift A Frames 500 gr over 93.5 gr of RL15 and am just shy of the 2,100 FPS mark. To take up extra case volume I use a 3/4” light foam plug that I cut using a 450#2 case body that is cut in half and has sharpened edges. No pressure signs in my rifle. Hope this helps.