Remington 1894 AE 10 gauge

[J.B. Books]

Originally Posted by Jent P Mitchell III

A lite load of 7625 can lead to detonation instead of the correct burning of the 7625. I have seen 7625 bulge the barrel just in front of the chamber when the reloader/shooter was trying to achieve a low pressure reload using 7625. Do not try to go to low with 7625. Use enough or more then enough 7625 to achieve the correct burning rate of the powder.

Catastrophic gun failure due to the condition called detonation in a shotgun is very unlikely if not impossible. It is an easy fall back to blame an over pressure condition created by a barrel blockage or an overcharge from too much powder or the wrong powder (too fast).

In metallic cartridge loading it is thought the gap between a seated bullet and a small amount of powder can create the conditions for a detonation. This condition can't exist in a shot shell because wads are seated on the powder and the seating of the wad is insured by crimping the shell. If such a large space were to exist the shell could not be crimped properly and it will dish in. Shotgun shell detonation from too little powder is myth, there is no scientific testing that proves this can happen.

[J.B. Books]

Originally Posted by Jent P Mitchell III

So do what you want to do but do not say that you were not warned.

Do not take just my word for all of this. Search the internet for stories of 7625. Ask around on other gun club websites. Safe Shooting To You All, Jent.......jentpmitchell@msn.com

Jent, detonation is at best a controversial phenom because the action of the load doing what you state in your post has never been observed in a scientific manner in a pistol, rifle or shotgun. Alliant when they were in business, had a pamphlet about using reduced loads in pistols, they addressed the issue of detonation, their result, Alliant could not create a detonation in their tests. The NRA commissioned H.P. White Lab to prove or disprove detonation could occur in a 38 special (because a lot of 38 specs were blowing up), they tried to do it and they could not make a detonation happen. What they did find is double and triple charges of fast powder were needed to damage the revolver in their tests. Their conclusion, reports of detonation were actually the result of an overload.

Detonation remains a theory, it has not be proven in spite of attempts to create it, since it has not been proven it remains a myth.

Damage to a gun is caused by overpressure (or material failure of the barrel/receiver). Overpressure can be created by a barrel obstruction, too much powder, or the wrong powder.

On your other points, yes I have now been warned about 7625, but you have been warned to not shoot nitro powder loads in composite barrels, if you ask around on many other websites and gun clubs you'll get the same advice, don't do it, yet you shoot damascus and twist barrel guns with nitro loads. So what are such warnings really worth?