300 Whisper Owners... Please sound off!

[Nick-S]

Waiting on the arrival of PacNor blanks to start our own batch of 3 (so far) UK spec rifles. Reamers, dies and gauges have already arrived. They'll be standard (ish) ARs - but no gas in the UK. Side charging 'bolt' action all the way here... On the plus side, short barrels and suppressors are no problem...

Nick

Ameetec upper, Pac-Nor 12" barrel:

[d-mon]

I am working on mine at the moment. I just decided to go for a Border barrel.
I will be a bolt action rifle.
I will post pictures when finished.

ND

[Hardegg]

My first post.
I have an AR15 the upper was made by Randall at AR15barrels.com.
I assembled the lower from a rock river reciever. Using a Bushmaster 2stage match trigger.
The supressor is made by "Jet"
16" Barrel with adjustable gas bloc. shoots sub 1" MOA without a problem

[blackwinch]

My CZ 527 conversion is underway... When everything is done I'll be sure to post photos and disclose the gunsmith... I pretty excited to have the man that I got to do the work to say the least! The best part is he is really looking forward to doing the work for me. There is nothing better than knowing the guy who is doing the work is taking a genuine interest in the work.
Going with 16" barrel 1/8 twist and trying to make it look pretty also.
I trust all will be good.

[prebancolt]

Just finished and test fired my Olympic barrel assembly on a RRA lower. Is it unusual to find Olys with the gas block in the pistol location? Mine is there and unmodified it cycles fine with subsonic and supersonic loads.

Sub loads are: 220g Sierra, modified 221 brass, 8.6g H110 powder, Rem 7 1/2 primers.

Super loads are: 110g ? HPs, modified 221 brass, 19.0g H110 powder, Rem 7 1/2 primers.

I was more than willing to fiddle with my new toy if it didn't work, but it has been working fine with both loads.

J

[caithness77]

G'day from Australia,
I am currently load testing a 300 Whisper for a friend. It's a MAB (Australia) single shot bolt action. 30" Heavy S/S MAB barrel, 1/8 Twist. Big gun! Only just started loads last week. Way too sub sonic! Dont need a supressor when your making less noise than a .22. Getting consistant results is a whole different issue.
Also been testing a Jongmans single shot bolt action with a 15" S/S, 1/8 twist barrel. Have a 155grn Hornady A-Max load at super sonic getting 1/4 to 1/2" groups. 220grn Sierra HPBT Match getting 1/2" but just over sub sonic. Have tried 240grn pills but can't get stabilization at 100 yards. Boy do those have some torque!
Would be great to hear from some of you guys that hunt with this caliber and if anyone has any advise on this cal with long barrels.

Cheers,
caithness77

[GunGeek]

OK so I just recently got my Mod1Sales barrel to start a 300Whisper AR project. I've gt a DPMS highrise upper and handguard. Mounting a Leupold 3.5-10 VariX-III on it. Picked up the rest of the small parts from Brownells and am going to put this upper on my tack driving .223 lower. Being an engineer married to a scientist, this is an experiment not just purchase another gun to shoot. Look for more posts in the Ammo section in the future as I play with load development.

[ranger dave]

while in the army got to use a 300 whisper while over seas . no other round or rifle combo could beat it. head shoots at 200 meters with ease thank you mr jones !!!!!!!!!!!!!!!!!!

[Huckleberry]

Howdy Pard's
I guess it's time for me to say hello
I'm Huckleberry, I live on the far side........ of the pond in Norway.
My whisper story started atleast 2 years ago when I got hold of a one 300 whisper brass, it has been sitting on my desk and said nothing untill this winter. After reading all I could find about this little but, Oh so cool, cartridge I got hooked. I started out with a Redding Die set and some new 223 brass, cut and formed them, then put some dummys together. Then a barrel, a reamer + a good friend with a lathe, the last item I bought was a Rem 700.Guess I have most of the parts that I need for this prodject, oh yeah I gonna make a full length silencer as well, I hope it's done in a couple of weeks, will let you know then, if my tinkering is working or not.
Thanks to you all that has given "me" their story and pictures in this forum
it helps a lot when you are shopping for ideas.

Thanks for your time
Huck

[nixer]

ar-15 pistol: 11.5" barrel built by randall 1/8 twist hbar stainless pistol length gas w/ jp turned down adjustible manifold

no can
used for deer hunting