Jump to content
UKV - The Place for Precision Rifle Enthusiasts
Sign in to follow this  
lee w 118

Hornady freebore question

Recommended Posts

Hi there, what freebore would i need on  .224 75g and 80g bullet.

The bullets are Hornady 75g and 80g ELD match. 1-8 twist

Why im asking is that i have to spec this when ordering new reamer

And could i , if i want shoot hornady 53g v max in the same chamber

Below are bullet lengths , cheers Lee 

20191127_193750.jpg

20191125_190639.jpg

Share this post


Link to post
Share on other sites

Do you think that the 53 grain won't shoot if throated for the heavier bullet? They should shoot just fine if that barrel is capable of doing so. I have so many accurate .223 loads ranging from 50 grain Fiocci factory VM loads to my own 70 grain loads that I don't give the standard throat/chamber of my factory rifles a thought.~Andrew

Share this post


Link to post
Share on other sites
On 11/30/2019 at 12:24 PM, lee w 118 said:

Hi there, what freebore would i need on  .224 75g and 80g bullet.

The bullets are Hornady 75g and 80g ELD match. 1-8 twist

Why im asking is that i have to spec this when ordering new reamer

And could i , if i want shoot hornady 53g v max in the same chamber

Below are bullet lengths , cheers Lee 

20191127_193750.jpg

20191125_190639.jpg

I’m having a .223ai barrel spun up for my impending Impact Precision/MPA comp chassis rifle.

The reamer is throated for 77gn-80gn bullets and has a 0.60” freebore (very similar to a .223 Wylde freebore) and a .255” neck diameter.

Barrel will also be a 1-8” twist.

Im likely to shoot the 77gn TMK or 80gn SMK with it.

Share this post


Link to post
Share on other sites

I think if you just get the ‘.223 Wylde’ reamer you’ll be absolutely fine shooting anything up to 80gn. There’s enough freebore to permit the long bullets to seat long enough to maximise internal case volume...but also short enough to allow you to chase the lands as they erode over time. The Wylde reamer is a common reamer and a lot of rifle smiths will have one in their inventory. 

Share this post


Link to post
Share on other sites

Thanks for your advice,  but im not looking at a .223 case in 224

Its a 6mm GT case necked to .22. Not every ones cup of tea 😁

20191130_165852.jpg

Share this post


Link to post
Share on other sites

Ah ok, though with the extra capacity I’d personally be looking at the 85gn Eld-m or Bergers 85.5gn Hybrid or 90gn VLD. The BC spanks that of the 75gn ELD and is definitely better than the 80gn ELD.

With the above in mind, go with a faster twist (1-6.5”)

You've got the extra capacity - would be a shame not to fully realise it.

Share this post


Link to post
Share on other sites

With a twist rate for the heavies I would never worry about the 53 grn in the same chamber should work fine. I would make sure my brass was trimmed and had good contact on the ogive.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy