britrifles wrote: PPU Cases, Varget, and the Sierra 174 MatchKing are readily available in the US if you plan to reload.

To the OP: along with the corporate wisdom of "you should reload", the options where .303 British are concerned are not limited as many believe (and some post on the internet).

If you are fixated on using a bullet of the same weight and FMJ design as the Mk VII ball round, there are numerous similar bullets available, not just the Sierra MKs.  Hornady has their version, as does Privy Partisan (do yourself a favor by starting with virgin unfired PP brass and preparing it for first firing using the false shoulder "fireforming" technique).

PP goes one step further by also offering that FMJ spitzer in not just 174 grains, but also in 150, 170, 180, 182 and 190 grain weights.

At about $15 per bag of $50, when it comes to load development, that's cheap like borscht.  The remainder of the weights that result in poorer results can be loaded for shooting at closer ranges i.e. 100 yards where their lesser grouping ability will not make much difference.

The one fly in the ointment where the FMJ designs available for reloading is concerned is that, without exception, every bullet offered by all these manufacturers is a boat tail design - which the Mk VII bullet was not.  The Mk VII with it's open rather than enclosed base I believe (based on a lot of experience with the similarly open based Nosler Partition in worn bores) allowed the Mk VII bullet to obdurate to some extent to better seal the bore and be engraved by the rifling in LE's with worn bores.

(I cannot add to that because I purchased my 1950 Long Branch for Service Rifle competition, new from the factory with a hang tag and covered in grease - no experience reloading for worn bores.)

More current Lee Enfield corporate wisdom is that today's serious reloaders have found that rifles with worn bores do not group as well with boat tail bullets.  Intriguing marketing/design criteria on PP's part: the majority of purchasers are buying these for surplus Lee Enfields, many well worn, that uniformly used the Mk VII ball round.  But marketing tells them those customers are more attracted to a boat tail design rather than an open based design like that ball round that might give them better load development grouping results?

Perhaps it shows how little the majority of Lee Enfield rifle owners know about their rifles?  A boat tail MUST be better?

I wonder if a campaign across all Lee Enfield forums to gather signatures to ask PP to consider offering an open base 174 grain version of their FMJ would catch their attention over in the Balkans?  They're already happy to offer six different weight variations...  Perhaps I should write a letter based on "faint hope" theory?

If you allow your mind to consider bullets of weights and designs that do not resemble the Mk VII round, your possibilities expand quite a bit, and now your choices include bullets with flat bases similar to the military ball, although not having the open base.  

A short rummage through Lee Enfield forums here and elsewhere will allow you to find serious LE shooters engaging in shooting past 200, 300 yards who have had their best success finding a load that groups the best with their rifle using 150 grain soft point spitzers and the 180 gr. Sierra Game King.  I have not had to resort to doing load development with those different bullets so I can't offer any personal comment.

There is the cost of obtaining the tooling to reload.  It isn't cheap to begin - but comparing the cost of reloading against the cost of purchasing commercial .303 British ammunition if you're going to do more than just fire a couple of boxes of ammunition a year shows how quickly the expense of getting into reloading is quickly recovered and future savings realized in comparison to purchasing your ammunition.

Our fall gun show is going on this weekend.  There are tables of reloading tools, some in "very well used" shape and others in near new shape.  I walked past one table with a cardboard box that held an RCBS rockchucker press, case trimmer, powder scales, and some other stuff I couldn't see while walking past: looking nearly new and with a $225 price tag on it.  What does the commercial .303 British ammunition of your choice cost per box?

That's about the price of just the press alone.  There is very good pricing on quality used reloading equipment on internet forums, EvilBay, local gun shows, etc... you just need to have the time and patience to search for what you're looking for at a price you're happy with.

Anyways... there's some thoughts for you to consider.

I don't quite understand?

There's a "reloading" sub-section with its own "RELOADING" header with 2 areas, one for .303 & the other for 7.62mm.

How would you like to have this changed exactly?

Sorry if I'm being dense today!