Firing pin for srps

[wboggs]

Does a standard size firing pin adversely affect srps used in a 60000
psi load.
Thanks

 

[RegionRat]

Since there is no definition for "standard" in terms of firing pins, you may want to give a few more details.

Are you discussing cratering or ignition performance quality? What specific action the pin is in will be just as important as the details of just the pin.

 

[wboggs]

Since there is no definition for "standard" in terms of firing pins, you may want to give a few more details.

Are you discussing cratering or ignition performance quality? What specific action the pin is in will be just as important as the details of just the pin.

Cratering in MRAD

 

[wboggs]

Cratering in MRAD

Cratering in a MRAD

 

[wboggs]

Cratering in a MRAD

 

[RegionRat]

Are you sure you have got the barrel headspaced properly?

I realize they are interchangeable by the user, but I like to run the gages to be sure I have them headspaced properly.

When a headspace is a little too close to being on the loose end of the specs, the primer pistons back and forth more during firing and cratering and other primer deformation symptoms can appear as a result.

I would send a snapshot of the cratering to Barret and see what they say. You may get advised to ignore it, or they may want to check the rig out. I have seen these do it when a sample was loose, but it was of no operational consequence.

Keep in mind most LEO/MIL applications do not concern themselves with reloading, but just with that one cycle. If the pressure/velocity was normal for the given ammo, and the gun grouped and shot well, we didn't care if the primer cratered some as long as it didn't blank or shoot poorly. YMMV

 

[wboggs]

Are you sure you have got the barrel headspaced properly?

I realize they are interchangeable by the user, but I like to run the gages to be sure I have them headspaced properly.

When a headspace is a little too close to being on the loose end of the specs, the primer pistons back and forth more during firing and cratering and other primer deformation symptoms can appear as a result.

I would send a snapshot of the cratering to Barret and see what they say. You may get advised to ignore it, or they may want to check the rig out. I have seen these do it when a sample was loose, but it was of no operational consequence.

Keep in mind most LEO/MIL applications do not concern themselves with reloading, but just with that one cycle. If the pressure/velocity was normal for the given ammo, and the gun grouped and shot well, we didn't care if the primer cratered some as long as it didn't blank or shoot poorly. YMMV

Good advice. Most do not reload but I know a couple that like to shoot steel and we reload for that. There is no problem with going bang or accuracy. Will see what Barrett says but sometimes they lack a little in these type details