Modern Sporting Rifle Evolution
Sign up Calendar Latest Topics
 
 
 


Reply
  Author   Comment  
kshunter

Avatar / Picture

Gold Contributor
Registered:
Posts: 489
Reply with quote  #1 
My can is finally out of the holding cell (WOOHOO!). To be honest I had to kind of forget about it to keep from getting frustrated with the wait.
So now it’s time to delve into the world of loading subs for the wolverine. I just ordered the 195’s from MDWS, but while I wait is there something I can pick up to play with in the meantime?
From the little research I’ve done, it looks like 150’s over SWBO has work for some.
Any suggestions?
0
Bajabusdoc

Avatar / Picture

Gold Contributor
Registered:
Posts: 829
Reply with quote  #2 
get a 1/4 inch wood dowel to start with SQUIBs will happen......

start with a load down 20% from usual. then fire, will be supersonic and pop, dry dirt for a target so you can see the puff from impact. then go down .3 grain or so until less obnoxious. at some point will go subsonic. If you don't see dirt puff rod the can/barrel or look for day light in bore. then at some point you will fail to lock back. or you will have a squib (round stuck in bore). hopefully before that happens you will go subsonic mark that load in your note book. from there you can decrease load slowly for best sound vs accuracy. at some point YOU will have a squib........plan on it that is the only way to be safe expect it if the recoil is off rod the barrel don't just cycle another round.  Often the setup will go subsonic and another 50-100 FPS will be much quieter but not have a squib. 

AGAIN stay safe. AWARE that point of slow enough to be subsonic and not get the bullet stuck is something all of us need to find. Never follow someone else's data add a grain and expect the first round to squib. then dial back. your chamber and BCG will foul and fail to lock back after a number of rounds depends on powder etc. 

once you have a predictable round you may or may not need to change gas port depends on size of can and volume.
0
MDWS

Avatar / Picture

ADMINISTRATOR
Registered:
Posts: 5,572
Reply with quote  #3 
If it helps at all, take the opposite approach of supersonic loads.

Start up and work your way down. Not too far up!

__________________

Don't mistake kindness for weakness...

We are charged with upholding the constitution, from all threats, foreign or domestic, and we will bear true faith and allegiance to the same.

-Mark
0
His$Her277

Avatar / Picture

Member
Registered:
Posts: 10
Reply with quote  #4 
FWIW

My 10.5” w/ can runs a 150 grain Spitzer with 9.7 gr of 1680 @ around 1070 FPS

My 16” bolty cracks every time with the same load well over 1100....

Depends on host.... but that could be a starting point for you..??

__________________
My wife told me to stop spending money on guns.... then she shot my WLV
0
Bajabusdoc

Avatar / Picture

Gold Contributor
Registered:
Posts: 829
Reply with quote  #5 
There you go some starting data. Again start and come down. Be safe enjoy!

Attached Images
jpeg temp.jpg (615.46 KB, 14 views)

0
kshunter

Avatar / Picture

Gold Contributor
Registered:
Posts: 489
Reply with quote  #6 
That's a great help all, thanks for the tips! It looks like some projectiles show up today so the science begins soon.

This will be for a 12.5"/7twist wolvy pistol BTW.

One more question, Are subs generally temperature sensitive? If I find the subsonic recipe now on a 35-40 deg day, will that generally be faster on an 80+ day?
0
kshunter

Avatar / Picture

Gold Contributor
Registered:
Posts: 489
Reply with quote  #7 
I also just found the original thread where testing subs in the wolverine started, very informative also. With reading through that thread it definitely looks like temperature can be an issue still, but in the opposite direction (not staying subsonic).
0
kshunter

Avatar / Picture

Gold Contributor
Registered:
Posts: 489
Reply with quote  #8 
Ok, I loaded and tested two duplicate ladders of the 195 cast/1680/cci450. All loads flew stable in the first testing, and velocity ranges from 1197 down to 902. On the second set I attached the can, and chrono for my first suppressed shots. I lost just a little in velocity (a couple percent) and all fired fine. At about 10 grains 1050fps, I noticed the crack disappear. Unfortunately although it was stripping the next round, it wouldn't fully chamber any of the rounds and short stroked most. I have a folding stock on this rig, and I think the little extra piece that sits behind the BCG probably isn't helping by adding to the mass of the BCG.
All in all, im very happy with the results and am ready to load up more and do some further experimenting for sure.
I also fired several TNT supers through that same set up suppressed and there wasn't any point shift on the optic, everything functioned like it should....and the lesser sound was NICE!
0
Bajabusdoc

Avatar / Picture

Gold Contributor
Registered:
Posts: 829
Reply with quote  #9 
You can try a lightweight BCG or buffer if you have or can borrow ( don't buy until sorted) or put on a standard lower without the folder, fixed A2 seems most forgiving for me.
0
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.