Re: Clamp on muzzle brake?
<span style="font-style: italic">Knowing how concentric the ouside of a rem 700 barrel is (wich is not very concentric at all) the bore of the brake would have to be fairly oversized to ensure that bullet does not come in contact with the brake. Therefore make it less effective in reducing recoil. </span>
That statement is true. But cannot be applied to all muzzle brakes as a general rule, The Outside of Rem barrels aren't always concentric to the bore, but having a brake with a larger bore to accomodate all eventualities does not nesseceraly mean a loss in performance if the brake is designed to do its job right. On our brakes most of the recoil reduction is taken care of in the 1st baffle chamber, around 2/3, the second chamber handles whats left. The stainless steel insert is bored big enough to accomodate tollernaces in barrels as well as tollerances in gunsmith threading capability, it plays more of a function of keeping turbalance away from the arse of the bullet as much as possible and it looks good. You could actualy use the brake without the insert at all and still have very effective braking effect. We accurately measured these brakes on many calibers, the amount of propellant gas created and thus forced upon the baffles has a far far greater influence than a tight bore.
e.g.
take a .308winchester. with 2 loads, one pushing the limmits and another very mild. Fire them through our brake with the insert fitted to size, you will notice that the hard charging load creates more braking efficiency than the mild load.( bieng a result of the slightly higher recoil of a stiff load and the extra gas)
now fit a larger insert with a wider bore into the same brake. Fire the 2 same loads. you will notice that the recoil is very much the same as in the previouse (around 3% less, so little you'd not notice it) with the brake and same bore size insert.
What i'm saying is that the effect on braking efficiency is more reliant on the load than on the bore of the brake, You will see more variance in braking effect through load difference in a box on non premier factiory ammo than you will when going from a tightn to a slack bore.
So effectively you can use a brake thats designed for a 9.3mm projectile and has a 10.3 mm bore just as effectively on a .308win as a brake thats got the bore size at 8.5mm which would be right for a .308win brake.
This may not be the case with other brake designs, but it sure is with ours. Thats because we did our homework.
Now when it comes to fitting a brake. definately, most absolutely, threading the barrel is by far the best way to go about the whole issue. But in certain countries or states barrel threads on the muzzle are not legal. They may also not be desired by the rifle owner. In that case a properly designed clamp on style brake, used within its limitations ( I wouldnt use on one a .338 lapua, but I have customers who do, despite me telling them they shouldn't) does have its place and serve its purpose.
Like mentioned above,, the extra beauty of the threaded muzzle is you can fit a suppressor too. Make sure you get the muzzle threaded correctly and I am sure that most of the smiths who frequent here are more than capable. and i'm sure weve all seen and repaired backýard plumbing jobs done to butcher rifles.
No I go on the notion of that all rifle barrels should be threaded, otherwise we rifle manufacturers are not attending to our duties as manufacturers, and part of those duties include ensuring that the rifles we manufacture can be fitted with the nessecary equipment to reduce peak noise level at source, in line with most of the health and safety directives. The fact that seems to have gone straight on past the rest of the firearms industry not to mention the firearms resgistration folk in most countries.
Brakes however are usualy LOUD.. so make sure you wear hearing protection..
best Pete