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Which .223?

 
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Old 01-06-2009, 10:46 AM
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Join Date: Oct 2008
Location: Kodiak, Ak
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Re: Which .223?

November 6, 2008

5000+ FPS with 22BR Improved and 30gr Berger Bullets

Filed under: Bullets, Brass, Ammo, Hunting/Varminting — Tags: McDonald — Editor @ 12 pm
Forum member XmarksSpot has been shooting a wicked fast varmint cartridge that has broken the 5000-fps barrier using Berger 30gr varmint bullets. That’s some serious velocity! XmarksSpot reports:
Some people think 5000+ fps is mythical. Well just thought I’d let you guys know that I got 5239 fps a couple weeks ago shooting 30-grainers with my 224 McDonald, a wildcat cartridge based on an improved 6BR case necked down to 224. (This case is very similar to a 22 Dasher.) The bullet used is the 30gr Berger. (The 40s run fast too — about 4800 fps.) The rig is a Rem 700 with a 30″ Hart barrel. Below is the case before and after forming. As you can see it has a 40° shoulder and far more case capacity than a 22 BR (a 22 Dasher case holds about 41.0 grains H20). My most accurate loads are with 50-52gr bullets, with bugholes the norm at 4200 fps. The 40gr bullets will do 4800+ fps.


This 224 McDonald wildcat was developed by Charles McDonald. He has been developing and chambering custom cartridges for years. If anyone is interested give him a call at (780) 325-2509, tell him XmarksSpot sent you.
Editor’s Note: Many folks may not be aware of the little 30gr Berger varmint bullet, and some online vendors don’t carry it yet. It is Berger stock # 224030M . It has an 0.121 BC and will work in 1:15″ or faster twist barrels. You’ll find more info on BergerBullets.com in the “Hunting Bullets: Varmint” section.

Just another option to think about! On a Savage Target Action and the price of some quality barrels its very easy to swap barrels even in the field. Sure would make the red mist fly.
I spoke with Mr McDonald at length recently and he is shooting the 65 grain bullets at 4200fps!

Neal



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