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Forum: 300 Whisper Rifles and Pistols 01-07-2012, 02:39 PM
Replies: 15
Views: 8,089
Posted By carcass
7.5" of my own design, 0.125" gas tap at 4.7" I...

7.5" of my own design, 0.125" gas tap at 4.7" I have some issues with cycling when loading short rounds (to make mags stack properly). I am currently trying to work out a load that will cycle 100%....
Forum: 300 Whisper Ammo and Reloading 01-07-2012, 12:08 PM
Replies: 24
Views: 3,675
Posted By carcass
Has anyone here experimented with a short piston...

Has anyone here experimented with a short piston system for the 300 BLK/Whisper?
Forum: 300 Whisper Ammo and Reloading 12-29-2011, 04:03 PM
Replies: 24
Views: 3,675
Posted By carcass
It could be that your suppressor holds more back...

It could be that your suppressor holds more back pressure...I am using an SRT Shadow .30 cal can. The gun certainly does not cycle without it when using subsonic loads. What can do you have? As...
Forum: 300 Whisper Ammo and Reloading 12-29-2011, 02:13 PM
Replies: 24
Views: 3,675
Posted By carcass
Also to Lou: Your suggestion to use heavier...

Also to Lou:

Your suggestion to use heavier bullets makes sense except for what I note below, however I'm a cheapskate and would rather use the less expensive (and more available) 200 grain...
Forum: 300 Whisper Ammo and Reloading 12-29-2011, 01:59 PM
Replies: 24
Views: 3,675
Posted By carcass
Lou, Thanks for the reply. Since I make...

Lou,

Thanks for the reply. Since I make the barrels myself, it's not that hard to change the position of the gas tap. It's just a matter of setting up the lathe. As I mentioned, the gun...
Forum: 300 Whisper Ammo and Reloading 12-28-2011, 08:01 PM
Replies: 24
Views: 3,675
Posted By carcass
Thanks for the info. I made the gas port pretty...

Thanks for the info. I made the gas port pretty large (my shop drawing says 0.120") so I should be getting at least as much gas into the tube as yours is. I can't imagine the extra 0.5" on your...
Forum: 300 Whisper Ammo and Reloading 12-28-2011, 06:59 PM
Replies: 24
Views: 3,675
Posted By carcass
Of course, if the weight of the rounds in the...

Of course, if the weight of the rounds in the magazines is really the problem, it doesn't bode well for the practicality of the 300BLK as a fieldable full-auto cartridge, then, does it?
Forum: 300 Whisper Ammo and Reloading 12-28-2011, 06:26 PM
Replies: 24
Views: 3,675
Posted By carcass
That is a good observation, which I hadn't...

That is a good observation, which I hadn't considered. I have tried several different types of magazines and had similar problems with all of them. Interestingly, I don't know whether the bolt is...
Forum: 300 Whisper Ammo and Reloading 12-28-2011, 05:53 PM
Replies: 24
Views: 3,675
Posted By carcass
rsilvers, Great job on getting these to...

rsilvers,

Great job on getting these to market. I purchased a box of primed brass from Midway and have been experimenting. I have a 7.5" barrel suppressed upper that I chambered and built...
Forum: 300 Whisper Ammo and Reloading 05-08-2011, 09:41 PM
Replies: 6
Views: 1,470
Posted By carcass
If you haven't already done so, hook your shop...

If you haven't already done so, hook your shop vac up to the trimmer vacuum port. That fixed the problem for me. The very few times the vac hasn't cleared this kind of kerf out of the way, I just...
Forum: 300 Whisper Ammo and Reloading 03-06-2011, 12:45 PM
Replies: 94
Views: 22,797
Posted By carcass
Thanks for the reply! is that because of...

Thanks for the reply!

is that because of the increased mass of gas?yes, i don't think they have the blackout chamber in my version of the softwareI see. Yeah, to build this load I started off...
Forum: 300 Whisper Ammo and Reloading 03-06-2011, 12:19 PM
Replies: 94
Views: 22,797
Posted By carcass
I realize this is a somewhat older thread but I...

I realize this is a somewhat older thread but I thought I'd ask here.



What barrel length will result in this being subsonic? I have a 7.5" barrel that I chambered for "300 Fireball" or...
Forum: 300 Whisper Rifles and Pistols 08-07-2009, 08:22 PM
Replies: 5
Views: 1,884
Posted By carcass
Just wanted to report success in making my first...

Just wanted to report success in making my first 300 Whisper barrel. I picked up a .30 cal blank from Midway and called up PTG and purchased a chamber reamer and a set of headspace gauges. I turned...
Forum: General milling machine Topics 05-31-2009, 12:53 PM
Replies: 4
Views: 3,044
Posted By carcass
A vertical-horizontal could be very useful. The...

A vertical-horizontal could be very useful. The vertical mills are most common. Horizontal mills are used frequently for cutting spiral gears, gang milling, and are great when your milling task...
Forum: 300 Whisper Rifles and Pistols 05-30-2009, 11:23 AM
Replies: 5
Views: 1,884
Posted By carcass
Thanks for the info! Since I have a lathe of my...

Thanks for the info! Since I have a lathe of my own, I decided to buy a chamber reamer and a blank and give it a try myself. Reamer's in the mail now. Wish me luck!
Forum: 300 Whisper Rifles and Pistols 05-24-2009, 03:36 PM
Replies: 5
Views: 1,884
Posted By carcass
AR15 Barrels contact?

Does anyone have a good contact method for AR15Barrels.com? The e-mail address he posted on the website (randall@ar15barrels.com) does not work. I'm trying to see about getting a short 300 whisper...
Forum: 300 Whisper Ammo and Reloading 10-17-2008, 03:15 PM
Replies: 13
Views: 3,279
Posted By carcass
I have loaded 147s subsonic with H4227 before. ...

I have loaded 147s subsonic with H4227 before. The problem is that the peak pressure never gets high enough to expand the case and seal the chamber well, so there's tons of blowback gas and dirt...
Forum: 300 Whisper Ammo and Reloading 10-05-2008, 11:01 AM
Replies: 0
Views: 2,109
Posted By carcass
Some Observations on M1S Barrel and Converted Brass

I've been reading for a while about the problems that many of us have been having with Model 1 Sales' .300-.221 barrels, and I've experimented with a number of things. I think I've found some good...
Forum: 300 Whisper Ammo and Reloading 07-20-2008, 01:36 PM
Replies: 11
Views: 3,653
Posted By carcass
I got one of C&H's Dillon trim dies for 300...

I got one of C&H's Dillon trim dies for 300 Whisper. I set it up in my old Lee single stage press. The die is so short I had to drill and tap a hole for a set screw in the press, but once I got...
Forum: 300 Whisper Ammo and Reloading 12-02-2007, 02:04 PM
Replies: 2
Views: 2,042
Posted By carcass
Clays is a really fast burning powder...generally...

Clays is a really fast burning powder...generally it's not recommended in pistol applications in calibers smaller than .40 (due to the rapid pressure increase in a smaller bore). Taking JDJ's...
Forum: 300 Whisper Ammo and Reloading 12-01-2007, 11:26 PM
Replies: 11
Views: 3,653
Posted By carcass
Hey, Thanks! For some reason, when I...

Hey, Thanks!

For some reason, when I searched the Midway site for "Whisper" and/or "fireball" it came up with only the things I mentioned above. It didn't seem to look in the "obscure" area.
...
Forum: 300 Whisper Ammo and Reloading 12-01-2007, 10:07 PM
Replies: 11
Views: 3,653
Posted By carcass
300 Whisper / Fireball Die Availability?

Am I crazy but I thought Midway used to sell the Redding 300 "Fireball" dies. I just got a new .30 can and I'm gearing up to build a 300 "whisper/fireball" AR, and I can't find dies now!! GRR!
...
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