Top products from r/300BLK

I'm currently making 300blk out of 223 cases and just loading standard plinking rounds. I'm going for lost cost per round (CPR) that I can do.

Whatever press you very will typically work with any dies. I use a Lee single stage press and Lee dies, personally. I like doing steps in bulk.

Steps:

1. Look at all my 223 brass and pick out as many lake city brass as I want to covert.
   
2. Use a harbor freight 2in mini cut saw and some type of jig (I made one myself, but there are better ones on Amazon) to cut it to the right length.
   
3. Decap and resize using the decap/resizing die.
   
4. Depending on the trimmer you will either trim the case to length before priming, or you can prime first. I use a Lyman Ezee Trim and bought the extra 300blk pilot for it since I also do 223 and plan on 308. BUT I'd personally say to get the world's finest trimmer 2 of you plan to do bulk as well as other calibers. I was enough money on trim serious that failed that I could have just bought the world's finest and been good. If you don't plan on bulk and want to save some $$ the Lyman is fine. If you use the Lyman you need to prime after trimming. World's finest you can prime whenever. With the Lyman you may need to resize again if you use a hand drill to help with the trimming. Sometimes mine opens the case mouth a bit and causes b to not seat correctly.
   
5. Trim or prime after doing whatever you didn't do in the last step.
   
6. Find what powder and load you want. I use a Lee perfect powder measure. Others may be better. Mine gunks up after 100 rings and I wind up needing to clean the internals of I leave pretty in it overnight because they make the lever get hard to move. It also spills a little powder out the side in mine. This may not be the case with others.
   
7. Inspect that there is power in every case. Just put them all in a holder and use a flashlight to check.
   
8. Seat bullet to desired length with seating die.
   
9. Crimp bullet if using in a magazine feed rifle. This is personal choice for people. I like to do it this way. Others may not. If you are going for plinking amp it usually won't matter either way. Precision ammo you will have to test with and without to see if one gives better accuracy.
   
10. Shoot and test it. Put 3-5 round s in a mag (if shooting semi-auto) and shoot all 3-5. See if it cycles reliably and kicks the bolt back after the last round. You can technically do this with 2 rounds in a mag, but I like to test to make sure they feed in the mag right as well.

Obviously the Hellbreaker lower is the centerpiece of this build, but there a few other goodies on here too.

The main sight is an Armasight 4x Nightvision Scope.

The backup sight is a cheap but relatively solid Field Sport Red/Green Dot Holds zero really well after repeated firing, best bang for the buck right now in cheap, sturdy little red dots. It's mounted on a 45 degree angle rail section.

Streamlight SuperTac IR spotlight on the right side.

CMG 4.5lb flat trigger, smooth as ice.

KNS Precision locking trigger/hammer pins in FDE

Obviously a SigTac SB15 pistol brace.

AAC three prong flash hider/suppressor quick disconnect

BCM Gunfighter Charging handle

Weighs about 45lbs it seems like, but once both of my stamps get back I feel this will be an excellent stealth-mode hog rifle.

Thanks! Got them from amazon and they seem to be pretty decent. There are a few other styles available but I liked these the best. Also different color schemes are available to match your build if you so choose.


https://smile.amazon.com/gp/aw/d/B074NZBZF9?psc=1&ref=ppx_pop_mob_b_asin_title

I use RCBS small base 300blk dies. Very happy with them. I used them to convert a ton of 5.56 brass and reload, etc.

I like RCBS and Hornady. RCBS will send you free parts if you ask.

https://www.amazon.com/gp/product/B00B4S9XDW/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Have you ever reloaded rifle brass before?

Dies, Primers, Powder, Bullets, Brass!

I use RCBS Dies (Small Base)
https://www.amazon.com/gp/product/B00B4S9XDW/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

Powder: I find my gun LOVES Win296 19gn for 110g Hornady VMAXX.. I have tried other powders and non perform like this for me. it works great for both the 110's and the Nosler 125's.. I have loaded a few Nosler 150BT's, they were fine too..

Also, Go to Harbor freight and get this..
http://www.harborfreight.com/2-in-mini-bench-top-cut-off-saw-62136.html

Then look on Amazon or Ebay for a jig and make your own brass.. That will make your life easy as hell.

Reloading 300 blk is fun, on my Ruger Predator i have this vortex scope, its ok for the money

I have a Bushnell 1-4, It works well, It's not a true 1x, more like 1.25ish but still works as an awkward red dot.

The 223 bullet drop reticle works good for 300blk just at diferent ranges depending on super/sub. granted I got mine used for 100$ I'm not complaining.

Thanks. Sandman-K suppressor. The wrap is called Mcnett Camo Form
https://www.amazon.com/dp/B000O1OWTA/ref=cm_sw_r_cp_api_zVx-Bb2FZF25G

It sucks if your suppressor gets too hot cause it melts but it’s good for hunting

I went with a Leupold VX-1 2-7 for my .300 whitetail carbine upper: https://www.amazon.com/Leupold-113864-VX-1-2-7x32mm-Matte/dp/B006PH69VG

No BDC and it isn't tacticool, but it fits my purpose and budget. Lifetime warranty is nice, too.

KAK Micro, if it'll fit inside your handguard:

https://www.kakindustry.com/ar-15-parts/upper-parts/barrels/barrel-parts/flash-hiders-and-muzzle-breaks/5-8-24-threads/kak-industry-micro-slim-flash-can-5-8


Alternatively, I frequently use:

https://www.harborfreight.com/power-tools/cut-off-saws/6-in-55-amp-cut-off-saw-61204.html

along with: https://www.amazon.com/BW-Casey-Aluminum-Black-Touch-Up/dp/B002JCW2CG

some ol stuff like this that I've had for decades

eta I wouldn't use it for anything other than hunting tho, it'd probably melt

Here's a great build here for a 300 Blackout Deer Slayer:

https://i.imgur.com/P0WAkSV.jpg

• PSA 8.5" PISTOL LENGTH 300AAC BLACKOUT 1/7 NITRIDE 9" M-LOK & FLASH CAN UPPER - WITH BCG, CH, & MBUS SIGHT SET http://www.palmettostatearmory.com/psa-8-5-pistol-length-300aac-blackout-1-7-nitride-9-m-lock-flash-can-upper-with-bcg-ch-mbus-sight-set-516446671.html?trk_msg=RIVGVS68SUSKN3CI9KU00FHGUK&trk_contact=IJ3OA4T1MBDOVBGP3RH7BT6NSS&trk_module=bna&trk_sid=G1VT78PR9J85V05OTFOJDOTKJC&utm_source=Listrak&utm_medium=Email&utm_term=Product&utm_campaign=Palmetto+Browse+Abandonment&utm_content=Palmetto+Browse+Abandonment+2
  
  
• PSA AR-15 COMPLETE CLASSIC EPT PISTOL LOWER
  http://palmettostatearmory.com/psa-ar-15-complete-classic-ept-pistol-lower-no-magazine-black-516445000.html
  
  
• Vortex Viper PST 1-4x24 Riflescope with TMCQ MOA PST-14ST-A https://www.amazon.com/Vortex-Viper-1-4x24-Riflescope-PST-14ST/dp/B003AQOZHA
  
  
• Magpul PMAG M2 MOE Magazine https://www.midwayusa.com/product/2319180134/magpul-pmag-m2-moe-magazine-ar-15-223-remington-30-round
  
  
• Magpul AFG2 Angled Forend Grip AR-15 Polymer https://www.midwayusa.com/product/2319453274/magpul-afg2-angled-forend-grip-ar-15-polymer
  
  
• Magpul M-LOK AFG2 Adapter Rail Polymer Black https://www.midwayusa.com/product/728090/magpul-m-lok-afg2-adapter-rail-polymer-black
  
  
• KAK SHOCKWAVE PACKAGE - BLACK https://www.kakindustry.com/shockwave/shockwave-package-black

https://www.amazon.com/Meprolight-Heckler-Night-Sight-green/dp/B00555BTUA


You can buy just the front sight alone as well.

I found those on Amazon. They have several styles to choose from.

This company sells them in 3 packs. You'll have to click into their seller profile to find other calibers and colors

https://smile.amazon.com/Sighthound-Ballistics-Blackout-Magazine-Black-Red/dp/B074NZBZF9/ref=pd_sim_200_2?_encoding=UTF8&pd_rd_i=B074NZBZF9&pd_rd_r=EG0E3DQBAC1ZF8B2BXMJ&pd_rd_w=ejFMr&pd_rd_wg=pyrva&psc=1&refRID=EG0E3DQBAC1ZF8B2BXMJ

This.
Bushnell AR Optics FFP Illuminated BTR-1 BDC Reticle AR-223 Riflescope with Target Turrets and Throw Down PCL, 1-4x 24mm https://www.amazon.com/dp/B00AU6EIIY/ref=cm_sw_r_awd_Qs-rub0SNX9JY

https://www.amazon.com/gp/product/B0063I1FFW/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Mostly done. I have to install the dust cover, crush washer, and buy sights.



Parts List

Item | Price | Weight (oz)
---|---|----
upper/lower combo | $81.00 | 22
Barrel | $104 | 16
Tax Stamp | $200 | Soul
gas tube | $9.85 | .9
gas block | $9.95 | 4
UTG super slim 7" rail | $82.16 | 7.6
engraving | $30.00 | -.00005
forward assist | $14.00 | factored into upper
LPK Rock River | $63.00 | factored into upper
MAXIM CQB STOCK | $376.21 | 18.59
bolt carrier | $0 | 11.5
CNC Warrior AK74 Brake | $37.00 | 2?
CNC Warrior 5/8-24 to M24x1.5 Adapter | $19.00 | 1?
AIM Nitrided bolt assembly kit | $55.00 | factored into upper
charging handle | $16.00 | factored into upper
utg single point sling mount | $7.46 | idk
BCM Grip Mod 1 | $28.00 | idk
4mm set screw for brake | $0.62 | negligable
Ejection port cover | $11.00 | factored into upper
magpul moe trigger guard | $8.50 | idk
crush washer | $1.40 | idk
Totals | $1171.15 | 90.39 (5.649375 lb)

The prices factor in S/H