AR 15 reloading

[Grizzgup]

Hello,

I’m pretty new to loading and wanted to ask some opinions on the heavier AR15 loads. When I load 75-77g bullets at 2.260 COL they look like they’re seated way too deep. I know this can be done, but what depth is safe? My Hornady manual calls for 2.390 COL for the 75g ELD-M. I’m assuming when loading these I wouldn’t be able to safely set them to magazine length? Again, I’m pretty new to all this stuff so forgive me if this is reloading common sense. Thanks.

 

[tomme boy]

Some bullets are not meant for magazine loading. Hornady 75gr hpbt was one of them.

 

[BCP]

Some bullets are not meant for magazine loading. Hornady 75gr hpbt was one of them.

Hornady 75s work fine in a magazine, I think you mean the AMAX

 

[BCP]

Hello,

I’m pretty new to loading and wanted to ask some opinions on the heavier AR15 loads. When I load 75-77g bullets at 2.260 COL they look like they’re seated way too deep. I know this can be done, but what depth is safe? My Hornady manual calls for 2.390 COL for the 75g ELD-M. I’m assuming when loading these I wouldn’t be able to safely set them to magazine length? Again, I’m pretty new to all this stuff so forgive me if this is reloading common sense. Thanks.

Correct

There are some 75s-77s designed for magazine use but the extra high BC ones like the amax, ELD-M you often can't fit at 2.260 or less

Stuff like this is made to work at mag length in AR15s

Factory Second Match 22 Cal (224 Diameter) Bullets 77 Grain Hollow

MidwayUSA has just made a huge purchase of blemished bullets and we are passing the savings to our customers. Blemished bullets are bulk-packaged,...

www.midwayusa.com

Here you go 75s for days unless the shipping is really bad or something:

https://redriverreloading.com/outdoor-store?route=product/product&product_id=151720&p=Hornady-22-Caliber-224-75gr-BTHP-wCannelure-Match-Bulk-Bullets-4000&r=ammoseek

 

[Bantam1]

The 75 ELD-M are too long for magazine length. For Hornady you need to use the 73 ELDM or 75 HPBT to load to mag length. There are plenty of options for heavier loads in the 70-77 grain class. Check the reloading thread there is a post dedicated to just AR loads. Start there and read what others are using.

 

[LRRPF52]

75gr ELD-M is just the 75gr A-MAX with the new tips for uniformity of components.

This is what it looks like loaded to mag-length:

Ogive gets buried. It’s safe within limits of the load/intruded case volume, not the data you see for 2.390” single fed loads. Great for single loading or bolt guns, not for mag-fed AR-15s.

Here’s an outdated projectile list for .224”:

 

[LRRPF52]

One of the most important things you will want to use when loading for the AR-15 is the Hornady Headspace Comparator kit.

It will really help you get your sizing die dialed-in optimally when controlling how much you set your shoulder back.

Too much cold-working and shoulder setback reduces case life.

Not enough shoulder setback causes failure to go into battery/malfunction.

You have to check with your actual chamber how much you need to move the shoulder back and still achieve bolt rotation into lock-up.

 

[Grizzgup]

Thanks guys! I do have a headspace comparator from Hornady. I use it for the ogive with all my loads. I appreciate the picture and the list, and all the advice!!!