303 reloads

[Dougan]

Nice one Steve :goodjob: Satisfying, isn't it :)

[Steve]

Does either full length resizing and neck sizing only make any differences to accuracy? Was wondering this yesterday so made up a box with same powder weights,but this time full length sized.

Ultimately, yes. Neck sizing leaves the brass as sized in your chamber with only the case neck sized (duhhh!), full length sizing restores the brass to some kind of standard, factory fresh size. Do you perform better in a condom which fits snugly, or a loose one? (DO NOT FEEL OBLIGED TO ANSWER, I'm using a metaphor.)

Dont like rubbers...

Also,when i resize the neck-will this alter accuracy if the bullet is tighter/looser? I've also read where people will sometimes not seat the bullet as deep as it should be so what does this do?

(im gonna end up boring you all to death soon). :lol:

Again, ultimately it will make a difference because what you seek to acheive is consistency. Some support the theory that some calibres benefit from higher case neck tension.

My advice, young sir, is that you should invest in a copy of the Lee handbook for reloaders (or whatever it's called) - all this knowledge is set out therein.

Got the book already.

Like i said previously,im happy with them now and they're going where i want them to go.

[Steve]

Nice one Steve :goodjob: Satisfying, isn't it :)

Yep.

[Dougan]

FWIW, I reload for my No4 with 175gn bullets and having used an overall length gauge into the chamber, load mine to an overall length which is a compromise between 20 thou short of touching the lands and ensuring there's enough bullet in the neck to hold the bullet securely, this is generally held to be at least the same as the calibre. The effect on my 303 is that the cannelure is clear of the case neck. Whether it makes any difference to the accuracy of the load or not, I don't know. They still fit the magazine.

I'd say that any reloading requires a modicum of common sense, a careful, methodical and cautious approach, and a willingness to read and apply the advice provided in reloading manuals. Follow the rules, double-check what you're doing and have a reason for everything you do.

I've still got some way to go yet before I start experimenting with extending the CAOL - I had some problems with the consistency of seating depth (just copying the PPU I've been using for now), and the tension of the seating. I think I've sorted the problems, and will be loading and testing the second batch next weekend.

Once I've got the seating (and powder) sorted then I might have a look at the CAOL - I'll probably start with the 'hacksaw method' (a la Ovenpaa )...and maybe even take a cast later on...