NitroX

Firstly, BEFORE you start ANY modification to the sights / metal work, you MUST get a load that shoots well
in the rifle at 100 yards.

Secondly, BEFORE you start ANY modification to the sights, you MUST have tried EVERY combination of
powder primers before you modify any metalwork. An example - on a couple of my doubles, (by coincidence,
one of which is a 450 x 3 1/4" Nitro so a very similar cartridge), changing the PRIMER from Fed 215 to CCI
made a great deal of difference to the POI (in fact it lowered it to the POA.

3. IF you are going to change ANYTHING to do with sights, first Change the FRONT SIGHT. This is partly as
it alot easier to get a higher or lower front sight (I have some UK made Blank / in the White Foresights if you need them)
and secondly, the formula used to calculate what height front sight you need only works with the front sight, not the
rear sight.

(Don't ask me to explain the formula on this forum, it's a bit long winded but it works as I've changed 4
front sights on my doubles and they all came out perfect.)

"but primers were being damaged on opening the rifle by protruding firing pins"
Theirs nothing wrong with the firing pins - the reason for this is that Fed 215 primers are quite soft
and ALOT softer than the primers used with Kynoch ammo in the past
Since I know the firing pins on this gun were checked for correct "roundness"
try using some CCI primers which are harder and tends to "drag" less after firing.

Finally, can you measure with a calipre the height of the front sight and email call me.
I'll do a quick calculation.

Email or call me over the weekend.

Hope this helps

500 Nitro