JE,
I should have mentioned that my .300 Win mag A-Bolt has a BOSS system so I have to leave either the ported brake on or replace it with a "no brake" solid BOSS. I actually forgot I had that I had the solid BOSS option until you suggested a thread cap. I'll dig the solid BOSS out of my safe. Yep, shooting shot after shot under Boulder City's roofed ranges is different from the wide open spaces of hunting and shooting one or two shots.
My 6.5 CM Ruger Precision Rifle has a Little Bastard brake so I can see my hits/misses during competitions. I'm entirely familiar with the advantages & disadvantages of a brake. I'll soon have a suppressor for my RPR and shooters beside me will not be so irritated. ;o)
Eric B.
There was a post a few days ago that talked about the popularity boss system and for some reason my post didn't make it, so i will add the highlights of that post in case it shows up
The love/hate relationship with this system has to do with the cartridge more than the boss. the boss is designed the same no mater what cartridge is used only the bore changes to accommodate bullet caliber.
The adjustable feature is good for tuning harmonics, but this feature
can be its downfall with certain cartridges because in out testing all types of muzzle brakes we found that there was an optimum distance from the muzzle to the front of the back ports. Normally is was a minimum of one caliber, and if the muzzle/crown encroached on this
overall performance was effected. while adjusting the boss, this is very possible. The other problem was that it was designed when most people shot factory loads that normally offered two different bullet sizes. So when reloading realy cranked up, it was ineffective in many cartridges.
In its time, it was a great idea and made an improvement in many factory rifles with factory loads. There is nothing wrong with it in certain cartridges but in other cartridges it just didn't work hence the hate by some.
The recoil reduction was poor at best (Fairly good at the time) the design was ok except it did not have enough port volume for most of the larger cartridges so it was ineffective and often could not produce the results expected. and Yes these brakes are very loud when shooting under cover.
I have made thread protectors that allowed the barrel weight to remain in place and simply replace the brake portion of the system.
It actually looks good when the thread protector is fitted close to the barrel and turned smooth for bluing.
Sorry about getting side tracked, but having experience with the boss system it would explain why they worked good on some rifle cartridges and did not work on others.
J E CUSTOM
