300 Whisper Sub-Sonic Loads

[lynn]

Guys I have been on the Quarter-bore forums but I'm not finding what I am after.
I need some loads for the 300/221 or 300 Whisper using TrailBoss powder.
I have been fireforming with 210 Bergers in a 8 twist and the velocities are quite slow with very little noise but I am keyholing at 100 yards.
What bullet weights are working in an 8 twist with TrailBoss?
I plan on going to AA1680 with the 210's but would like some nice quiet TrailBoss loads if you have them.
Barrel is 19 inches long.
Lynn

 

[P1ZombieKiller]

Lynn,

If you decide to go with Lil Gun instead of trail boss, I have some loading info for ya. The speeds will be a little off as my gun only has a 16.5" barrel.

 

[lynn]

Wes
I have been using 6 grains of TrailBoss and seating the 210 Berger VLD hunting bullets to 2.334 inches measured from the meplat.What I am getting is 10 shots into a decent for Whisper standards cluster with a shot or two way out in left field.I should say tremendous amounts of vertical both up and down.
I have quit throwing charges and have since weighed each charge by hand.
A fellow shooter and gunsmith at the range just built two Whispers and he also suggested LilGun powder.
What is your load and how consistent is it?
Lynn

 

[P1ZombieKiller]

200 SMK loaded with 8.6 grains of LilGun, Wolf SRM primer, 2.224" OAL = 1058 fps
5 shot groups at 100 approx 1"

210 Berger VLD with 8.5 grains of Lil Gun, Rem 7 1/2 primers, 2.307 OAL = 1052 fps
5 shot groups at 100 approx 3/4"

Both 15.5 MOA to hit at 200 yards. groups at 200 approx 2.5"

223 cases cut, sized, and then trimmed to 1.35".

I tried to shot the 208 Amax, but those really didn't group that well, and I found a good deal on the bergers, so I bought 1000 of them.

 

[lynn]

Wes
What kind of noise are you getting without a suppressor?
Lynn

 

[P1ZombieKiller]

very moderate. Low enough that I do not use ear muffs, but I also don't wear them when I shoot .22 or mow the grass. With my SWR Omega 30, it's really nice!!!!!