finally finished my .300 Whisper

[tdale4]

Originally Posted by kanton

tdale4,

How and why did you heat treat the zinc freeze plugs?

Thanks.

The freeze plugs are made from a zinc plated soft steel

I heated them up to red hot with a propane torch and quenched them in salt water. I did this twice. then I heated them up to red hot and quenched them in used motor oil

I did this because it is suppose to harden the steel and provide a longer life by reducing the erosion that occurs in a silencer

[shooter McGavin]

doing some research myself. You used stainless tube. It weighs roughly 1lb/linear foot. I also see they sell aluminum tube. The weight is 1/3 for roughly same wall thickness and diameter. 2/3 for double the wall thickness.

http://www.onlinemetals.com/merchant...=71&top_cat=60

did you do any research on whether the aluminum tube in these thickness was up to the task. There is a substantial weight savings for the thin was. still some for the thicker stuff. Just curious.

Mike

[L1A1Rocker]

Originally Posted by tdale4

I finally finished my .300 Whisper

tp555 9" 1:8 twist barrel
tp555 3 position gas block
Magpul stock and hand grip
DPMS Lower with RRA 2 stage trigger
RRA Upper with RRA bolt carrier group
YHM Handguard
ATF Approved Form 1 home built silencer permanently attached to the barrel
EoTech XPS3-0
PVS14 (for hunting hogs at night)




Now I gotta work up some loads

Should be Hell on hogs

Love the way that rifle looks!!! I'm planning on doing something similar when my docs (Form 1 sent Feb. 19) and parts finally get hear.

[jonblack]

Can you show us a pic of the hand guard where you access the gas block? I have been interested in the YHM had guard and wondered how well it worked out with the tp555 adjustable block.

Thank you
jonblack