Hi

so this is my first question here , hope you forgive my bad english.

Last year i bought a 500 S&W in 8 3/8 "

Now i want to try realoding my rounds.

I´ve bought this SJSP Bullets in 325gr from Magtech.
Unfortunately there are no reloading datas for this bullets.

In Austria we have powders from Vithavouri and Hodgon.
I´ve bought the Vithavouri N110.

In the Vithavouri reloading data are only parameters for the 300gr , 350gr and 400gr bullets . But nothing about this 325gr Bullets.

Today i´he bought 20 Rounds of this Factory Ammo.

I dismantle 1 Round , now i now a AOL and the powder amount.

But i dont know what powder is in it , and i want to take my N110 for it.

Maybe someone can help me whit that question.

Welcome to the forums, uumpower.

As for loading with the N110, I would start with the data for the 350 grain bullets since they don't have any loads for a 325 grain bullet available. Looking on the Vithavouri site for loading data, I see they show a starting load of 33.8 grains N110 and a max load of 38.7 grains for the 350 grain bullets. If it were me, I would start off with around 34 grains of N110 and see how they perform and then work them up to the performance level I desire.

Do not use any data or powder weights you derived from taking apart the factory round! You don't know what type of powder was used and in any case, the manufacturers do not use any canister powders that are available to us reloaders. They buy bulk powder from the manufacturers that probably has different burning characteristics than anything available to us.

First off you can not identify powder by looking at it. Secondly it is most likely not a canister powder anyway.

Can you provide the bullet dimensions and a photo and I will try to assist you. Need overall length of bullet and OAL you intend to load to, I would suggest the top of the cannelure.

be safe
Ruggy

So i've made photos.
Hope it works.
OAL 2,029 inch
Bullet 0,733 inch
Case 1,620 inch

Attached Images

	IMG_0815.jpg (77.0 KB, 14 views)
	IMG_0814.jpg (80.7 KB, 11 views)
	IMG_0816.jpg (81.9 KB, 18 views)

Use the powder data for the next higher bullet which would be the 350 gr bullet.

Your seating depth is determined by the cannelure on the bullet. Firm roll crimp and there you go. You really do not even have to measure the COL if seating to the cannelure fits the cylinder which it should.

As always start with the low or start weight of powder.

__________________
Still Running Against the Wind

If you looked at the Vhit data for 500 for N110, you will note the 350 grain XTP max. is a compressed load of 112%.

I calculated the pressure for thier loading for this combination at just over 50KPSI.

Using your bullet information with Vhit N110 a 100% case fill is 37.8 grains and yields about 36KPSI (calculated).

41 grains has case load of 110% and pressure just over 48.5KPSI with expected velocity from your gun at just over 1800 fps.

Personally I would load over N105 and not have to deal with compressed load. 100% case fill is 34.4 grains with calculated pressure of 59 KPSI and about 1835 fps.

A start load at 90% fill (start load) is 31 grains with estimated pressure of just over 44KPSI and about 1700 fps.

N110 will produce more velocity at lower pressure but you have to deal with compressed loads. The up side of N110 is it would be very difficult to make a reloading mistake and damage your gun.

Another powder you might try is Rottweil 910 if you can get it in Austria. It will produce even better results.

As stated this are calculated loads, my real world results from actual pressure testing and N110 and N105 have been typically within 2% for both 460 S&W and 500 S&W.

Good luck and be safe
Ruggy

What everyone up there ^^^^ said...AND....make sure you are shooting at a paper target only 10ft away....when building your loads you want to make sure you SEE them hit the target....the last thing you want is to have one stuck in the barrel and then fire another one after it.

ok thanks a lot.
So i try to understand:

1. I only have the N110 , no N105 or an other powder.

the original Magtech Ammo has about 1780fps.
When i take 41gr of the N110 then i also have a fps between 1800 and a little more?

I want a save load , so my max. load is 37,8gr.
Can i also make a starting load about 36gr?

You mean one of the positive facts on Vithavouri is , that not so easy to damage my gun whit it , because its difficult to reach the dangerous pressure whitout a compressed load.?

YES

Compressed loads are safe as long as the don't exceed rated pressure. They can be a problem in seating bullet.

37.8 grains is safe load and not near max load possible with N110, it is 100% case fill for your stated OAL.

Minimum start would be 33 grain- don't load be that.

I would start with 34 grains and go p in .5 grain increments.

Case extraction should be easy and would use that as my guide.

Since you have factory load ammunition you should also be able to gauge recoil- at 37.8 your load should be less than factory and be pleasant to shoot.

Please let us know how it goes.

Good luck and be safe
Ruggy

^^^THIS!.....and OAL is determined by the cannelure on the bullet. Crimp into the center and forget about OAL.

well said. Reloading for revolvers is pretty easy.

__________________
an actual conservative

So yesterday i´ve tested my first loads.

4 loads with 35gr , and 4 loads with 36gr with N110.
Recoil was weaker than the original Ammo.

now i´ll try 37gr and then the 100% load 37,8gr.

for me there was no Difference between 35 and 36 gr.

I´m a beginner in reloading. Which things say me the load is going to be to much?

Look for obvious pressure signs, such as hard case extraction or very flattened or even pierced primers. If you have access to a chronograph, that would help load development even more. I don't load for the 500 S&W but do load for 357 and 44 Mag. And I've seen a trend with both of those calibers that as you get higher pressures and getting close to max loads that you will see a flattening of the velocity curve with higher weight powder charges. Also, I would go up at .5 grain increases in powder now because a full 1 grain jump is pretty large when getting to the higher end of load development.

Sorry not in the 500 S&W - another example of trying to compare small to medium cross sectional area cases to large and very large cross sectional cases. Another reason to use fill density as a guide. A 1 grain difference with N110 is not delectable visually even when cases are set side by side.

uumpower
Your results are just as I stated when providing you with the data. As always proceed with caution. The 100% fill load will be very pleasant to shoot compared to that factory load.

N110 is pretty linear (in 500 S&W) compared to other powders.

Be safe and good luck
Ruggy