Re: 303
MrYou said:
Thanks for the tip ..
I have a sub 2" group with 174gr @ 200yds , but i was thinking that loosing a kilo of meat per shot, on a reasonably sized animal would be saved with smaller 'heads' .. I wil work on it , i tried working loads from 36 -42 up , with a faster 133 vit, but the shots key holed at 100yds, & were terrible groups.
with 100gr heads the vit 133 was good, but only to 100yds, so im hoping for a hgappy medium.
Best & nice rifle there
Ahhh Mr You,
Do you know if your rifle has been shot much with Surplus ammunition using cordite propellant? I ask because due to the heat crazing caused by cordite the old school NRA target shooters found that a barrel used with much cordite ammunition did not shoot Nitro Cellose ammunition so well so they often had two rifles one used with Cordite and the other with NC powder.
It's said it's to do with the way cordite ignites and "Bumps" up the bullet to fit the throat a lot like Black powder does while NC does not do this. Plus barrels that have been used with much cordite ammunition do not shoot Boat tailed bulelts very well. You mention you had trouble with "Keyholing" which is a classic sign that the barrel has been shot with a fair bit of cordite ammunition and that Boat tailed bullets were being used. Flat based bullets shoot better in the .303 British
Now as to meat destruction I fear you have not quite got it right on this. It's the construction and not the bullet weight which controls the expansion and meat destruction, the heavier bullet being slower should in theory at least be less destructive. This Fox was shot whilst stalking with that BSA Model E using Winchester factory "White Box" 180 Gr SP ammuntition:-
Ahhh yes for those with sharp eyes the bolt is "Cocked" but on an empty chamber

the rifle was unloaded to climb down from the seat

the closed bolt keeps debris out of the magazine and chamber and especially the locking lug recess.
He turned his head just as I squeezed the trigger, notice the way the pelt has blown up off the shoulder on the entrance wound

Now this next one was shot with a 30-30 again using Winchester factory ammunition "white box" but 150 Gr HP this time:-
Entrance wound
Exit is huge and nearly took the leg off. Now both were shot from the same highseat and at almost exactly the same spot at a range of about 70 yards. Neither rounds are really high velocity yet both produced large amounts of damage.
The Sierra 150 gr bullet is constructed, according to figures I have in some tables here, to withstand a much higher vleocity so it's a tougher bullet and should cause less meat loss. However as I have never used it in stalking I cannot say from first hand experience that this is true. That is because I prefer Hornady bullets as a rule

. My 1st Edition Vhitavuori manual only lists one load for the 303 with a 180 grain bullet and it uses N140 powder... Ahhh I see that edition #6 lists other bullet weights and lists N130 and N133 for use with 150 grain bullets in the .303 and 42.0 grains is slightly over their maximum recomended load.
Now may I suggest that you try another powder and if your not shooting in Scotland with the 303 then I humbly suggest the Hornady 180 grain RNSP (round nose soft point) bullet from Hornady over a charge of 38.0- 38.5 grains of H4895 as it has proven to be very accurate is a lot of .303 rifles over the years and not only for myself. Sadly I don't have any left otherwise I would suggest you trying a few for yourself without having to buy a box of them

not having a .303 listed for Deer I had to put all my expanding ammunition and bullets into storage at the dealers

.