I am having a 450 N.E. DR being made. I am going to regulate it with 500 grain bullets instead of the 480's. Also I am wanting to use R-15, with the case size and the bullet weight of 500 grains I believe I will not have to use any filler. I am wanting velocities of at least 2100 (barrel length is going to be 24"). Any one out there have any reloading info using R-15 in 450 N.E? If using the R-15 I would need a filler I would then try IMR 4350, so, has anyone tried the IMR 4350? I could always use the old standby IMR 4831, if so what kinda load are you using?

With either weight bullet, the .450 3 1/4" will require a filler with RL 15. It isn't something to be feared.
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"Serious rifles have two barrels, everything just burns gunpowder."

dirk - Asquare only lists

H4831
IMR4350
RL19

Call me if you need some starting loads for those powders.

My loads (with the usual caveat) are as follows. I don't think that there will be a significant difference between loads for the 480 and loads for the 500.
Woodleigh 480 SP 95 grains IMR4831
Woodleigh 480FMJ 86 grains RL15
Peter.

quote:

Originally posted by Peter:
My loads (with the usual caveat) are as follows. I don't think that there will be a significant difference between loads for the 480 and loads for the 500.
Woodleigh 480 SP 95 grains IMR4831
Woodleigh 480FMJ 86 grains RL15
Peter.

Peter, What kind of velocities are you getting with both powders? What length of barrel on your DR, etc. Thanks, Dirk

quote:

Originally posted by dirklawyer:
I am having a 450 N.E. DR being made. I am going to regulate it with 500 grain bullets instead of the 480's. Also I am wanting to use R-15, with the case size and the bullet weight of 500 grains I believe I will not have to use any filler. I am wanting velocities of at least 2100 (barrel length is going to be 24"). Any one out there have any reloading info using R-15 in 450 N.E? If using the R-15 I would need a filler I would then try IMR 4350, so, has anyone tried the IMR 4350?

I would not use the quick powders because they need fillers and produce ugly recoil combined with lower power.

I use 105Grain Vithavuori N560 behind the 500gr Hornady SP with great results out of my! Heym 88B Safari.
Primer Fed. 215, Brass Horneber, OAL 101mm.

Be carefull try it on your own risk.

Dirk, good question. I checked my notes and I have no idea. These are the loads that regulate the best for my double however. I will have to load up some more and chronograph them.
Sorry, Peter.

Dirk, FOUND IT. The RL15 load gave 2050 from the right barrel and 2086 from the left. Hope this helps!
Peter.

Thanks Peter, are you using a filler with the R-15? And what length of barrels do you have? And was it the solid or the soft in the Woodliegh?

No filler. As I recollect in Graeme's book he says filler is required for cases larger than 450 x 3 1/4 so I did not bother. The bullet was the Woodeleigh FMJ. I don't know the barrel length. Next time I open the safe I will measure it.
Peter

quote:

Originally posted by Peter:
No filler. As I recollect in Graeme's book he says filler is required for cases larger than 450 x 3 1/4 so I did not bother. The bullet was the Woodeleigh FMJ. I don't know the barrel length. Next time I open the safe I will measure it.
Peter

Peter, I am in the process of having my 450 N.E. made and I am going to be able to regulate it to my personal load. Was wondering when I get back from Africa after the 14th of July if I could send you a few rounds that you could shoot and chrono for me? I want to try a few loads with IMR 4350 and R-15 and the 500grain Swift bullets. I want to be able to get 2050 to 2100 velocity with a load within moderate pressure.

Sure, but Dirk I would rather you sent me the bullets and brass and let me load them up. Not saying that I don't trust you, but, mistakes can happen and I would rather it was my fault than yours. I don't have the 500gr. Swifts. I have tried IMR 4350 in both my 450 and my 500/416. Let me know if you want me to use filler. I have plenty(my wife is into quilting)! I can load them up and chrono them.
Peter.

Peter, I appreciate you doing this for me, that will be great. Give me your address and I will send the bullets and primed brass when I get back from my trip July 14th. My personal email address: dirklawyer@hotmail.com

I have been using 83.3 grs of RL15 and 3 grs of poly fiber fill in front of a Woodleigh 480 gr SP they have been chronying at 2130,plus or minus approx 10 FPS out of 28" barrels I tried 4grs of poly fill and got big velocity swings and fiber fill floating in the air I have not chronied the FMJ's in 480 but they print right along side the SP's..I would like to try the 4831 thinking I would not have to use filler but this load is bang on...best of luck Zephyr

Bob, that's why I don't use filler. I just refuse to weigh that stuff. Weigh powder, yes, filler, no! If I get a 50fps variation so what. The barrels in my double give me a bigger variation thaan that and still shoot to within 2 inches at 50 yards. Not knocking you at all. I tried filler in both my 500/416 and 450 3 1/4 and then reread Graeme. I just don't think I need to use it. In fact, some of Grames's loads for the 450 specifically state "no filler" as I recollect (don't have the book in front of me)
To each his own I guess. If I could see the accuracy improvement from a low velocity variation eg. one inch groups at 50 yards, I might be tempted. I can certainly get this level of accuracy from the same barrel with my current loads (two shots overlapping) but not using the right and left barrels.
Peter.

Peter, working from Graeme's book RL 15 was the powder I stared with and got very even velocity increases as I upped the powder charge and was very pleased with both velocity and accuracy with the afore mentioned load. I than tried to increase the filler and was quite surprised at the results. I had tried 4831 thinking per Graeme that I would be able to dispense with the filler and got some very erratic velocities and accuracy results as I was working up the load so I stopped seeing that the RL 15 was so good to me in the mean time Ross S. had a great artical in this winter's D Gun Journal about loading for the 450 and talked about flat spots in powder burns with some powders as you work up loads... with this in mind I will probably start again with 4831..I must say that I believe that the 28" barrels that my 450 sports ars very forgiving benched the left barrel at 60yrds is a one hole affair while the right opens up a bit. all in all it is alot of fun and a great learning affair thanks for the tips Bob

To: DIRKLAWYER
Dirk I went to the range today. Here are the results you requested from my M K Owen 450 x 3 1/4, 24 1/2 inch barrels. I will post pictures of the targets later (when I figure it out).
Both loads are with the Swift 500 grain bullets that you provided.
86 grs. RL 15
2248 (R)
2182 (L)
2194 (R)
2313 (L)
av 2234
ES 131
SD 59.83

This target has two extra holes, both from a 300WM that I had put a new scope on and had to sight in. One is at 11 o'clock just inside the black, between the two big holes. The other is in the X ring after I adjusted the scope. I forgot to change the target!
93 grains IMR 4350
2174 (R)
error (L)
2205 (R)
2336 (L)

(I reset the chronograph after the error so it did not calculate the average etc.
The real treat is the targets! At 50 yards, the 4 rounds of RL 15 shot a group 1 1/4 center to center. The 4350 was 2 1/4 center to center!Either would be good enough for me. My Owen has a Swarowski scope 1.5 - 4.5. It was set at 3.5 for the shooting. Shot off a bench. I think you will like these loads.
Peter

Peter, Much appreciated, I believe that the R-15 load with the swift bullets seems to be a fantastic combo. I wonder if your gun shoots the woodleighs as well? I am very thankful for your work at the range, keep the brass I sent you and when I get my rifle finished (end of year) it will be regulated with the swift bullets and the R-15. Dirk