Is it to Hot load??

[Boothill Bob]

How hot kan I load my RNV 45LC??
7.8 grn vv320 and a 250grn hornady xtp should be nice for bear protection,
or is it to hot???

[Sir Charles deMouton-Black]

Bob;  Where are you going to need bear protection?  Sweden?  Are there bears there?  Canada?  You can't carry a pistol in the bush here!  Must be the US?  Alaska?

[Boothill Bob]

We have lots of bear here... And when in fishing or prospecting I want to bring my gun, just in case

[Sir Charles deMouton-Black]

Here is HODGDON's load chart for .45 Colt;

http://data.hodgdon.com/cartridge_load.asp

Select "pistol", ".45 Colt", and "Get Data"

I don't see your powder?  What powders can you get in Sweden?  Nobel, Norma, Vihtavouri?  American powders?  I have a new Vaquero, but have only shot .45 Cowboy special loads, but full loads are on my Too-Do list.  

[fourfingersofdeath]

The New Model Vaqueros are listed safe with Colt level loads aren't they? Not to be confused with Blackhawk or Old Model Vaquero loads. If it was bears I was fixing to shoot, I think I'd go for a heavier boolit.

That powder is not available here, so I can't comment on it I'm afraid. I'd rather shoot bears than catch fish. I would be failing to concentrate on the fishing if I thought that I might have a chance to plug a bair!

[Boothill Bob]

I'm using vhitavuri 320 or 310. But I can get other powders to

[Sir Charles deMouton-Black]

http://www.lapua.com/fileadmin/user_upload/Relodata/Handgun/.45Colt.jpg

It looks like your load is listed on the Vihtavuori website.  As it appears to be a regular pressure load, I'd say that you are OK for a new Vaquero