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10/30/2020 2:42:12 PM
Posted: 11/19/2008 2:39:21 PM EST
I'm building my first AR. It has is a mid-length upper with 1:7 twist 16" chrome lined barrel. I, have been reloading 9mm and its working ok.
What is a good load formula that you guys use for a 55gr bullet?
Funds are tight and I, don't want to buy wrong components and than not use them.
Have been reading reload manuels and talking to some people the more I research the more confused I, get. I, will be shooting 25-100 yrds indoor and outdoor.
The main thing I'm looking for is which brand primer and powder to use with 55gr fmjbt.
Link Posted: 11/19/2008 2:50:06 PM EST
[Last Edit: 11/19/2008 2:50:34 PM EST by innocent_bystander]
I use Hodgdon Benchmark under 55 grain Hornadies with Wolf magnum primers in RP brass. Five shot groups at 100 yards out of my Sabre 16" midlength with a CQ/T on top are 1.0-1.5 inches.

I'm not a fan of using ball powders here in the AZ heat.
Link Posted: 11/19/2008 4:18:39 PM EST
For primers, you will need the Small Rifle size.

Use any of these, Win SR(small rifle), Rem 7 1/2, CCI-400, Wolf "rem 223".

Which ever you can find in your area.

Powders, any that are listed with the 55 gr FMJBT data.

Popular powders, ball type(easy to measure accurately) BLC2, H-335, AA-2230, Tac, W-748.

For best possible accuracy, Varget or RL-15 (extruded type, doesn't measure as well as ball), but worth the trouble.
Link Posted: 11/19/2008 8:04:07 PM EST
I use Varget, Hornady V-max's [60 gr] and Federal srp  in my 1/7 barrel..they work pretty good.
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