Need help from .303 reloaders

macadoodle

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been shooting enfields for a while, and figured I would get into re-loading. I'm full case resizing right now, because I have a few enfields and haven't segregated my brass yet. I am using the 174gr RN interlock hornady .312" bullets. Here are my questions:

1. Overall length. I know 3.075" maximum or if you measure the chamber you can seat the bullet to be .005 from the lands. My understanding is that with non crimped bullets the closer to the lands the more accurate because of pressure variations at ignition. Things I have read have indicated that if the bullet is crimped ( I do have a factory crimp die) the pressure is able to stabilize before the bullet leaves the cartridge. This eliminates the need to place the bullet close to the lands for accuracy. Is this true?

2. If I crimp at what depth do I crimp? The hornadys have an interlocking ring. Should I be lining the ring up with the case mouth?


3. My initial rounds I was making to 3.070" COL, but the bullet is only seated about 0.17 inches. From what I have been able to gather 0.125 is a minimum. should I be ramming these things down to the interlock line? The bullets in my factory Igman 180gr I have are seated almost to the shoulder.

4. Loads I figured H4895 about 39gr with these 174 hornadys, any suggestions? I am planning on making 3 or 4 different loads and trying 10 in each of my enfields to get a good baseline of what each one likes.

Thanks for any help.
 
I never crimp anything, including 303 British.

I've actually had good luck only neck sizing in 303 British and still using my reloads in different rifles. You may be surprized.

Your H4895 load seems reasonable to me.
 
The issues you discuss might show up as benefits in a quality bolt rifle with a good scope.

Out of a stcok#4 the 'advanatges" would be lost in the noise.

Your bulet is excelelnt. In my best #4 the Sierra match shoots groups hal the size of other bullets. I suggest you start at around 37 gr and work up in 0.5 gr increments.
The light barrel and flexible action will shoe a strong preference for one load.

Go find it.
 
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