Hi fellows milsurps lovers
The Ross M1910 is one of the finest bolt action rifle ever made as in regard in accuracy,smoothness and speed of operation. Unfortunatly,the M1910 main drawback,i think, is that the bolt can be assembled incorrectly if disassembled for cleaning or servicing. Recently another thread make me pulling my Ross out of gun safe to make a tutoral on bolt disassembly. I think that was important to do because of the risk of a incorrectly assembled bolt. The Ross M1910 is a straight pull bolt action rifle with a rotating bolt head. When the bolt is pushed foward, the bolt head turn about ¼ turn in vertical position to locked position. Because of the way the bolt is made, if the bolt is disassembled and assembled incorrectly, the locking lugs wont lock, even with the bolt fully foward, and the rifle can still fire with an unlocked bolt. This can cause injuries to the shooter since the bolt will be driven violently to the rear. Assembled correctly, the Ross M1910 is a perfectly safe rifle. Following is a complete bolt tear down so let's see with pics how to do it The bolt is removed from the rifle after pivoting the bolt release. When the bolt is removed from the rifle, the bolt head will likely turn in locked position since its on main spring pressure.
The extractor is removed by prying it to disengage from the bolt head and slided away from the bolt.
The cocking piece must be unlocked from the firing pin.
At the end of firing pin, there's a small hole. A small object(a little screwdriver,punch,nail) is inserted so the firing pin/cocking piece can be pulled to expose the cocking piece locking pin.
The locking pin is pushed and the cocking piece is removed(after removal of the small object previously inserted in the hole at the end of the firing pin)
The bolt head assembly is pulled from bolt body.
The firing pin retainer must be unscrewed from bolt head body, an adjustable wrench work fine.
The firing pin is then removed from the bolt head body.
There's a small lock ring against the main spring.
The lock ring have 2 dimples that mesh with notches on the firing pin retainer.
Also, the lock ring have a small tab that mesh with a keyway in the bolt head sleeve.
To remove safety, rotate straight up and pull to the right.
Remove the safety plunger and spring from the bolt handle.
Bolt disassembled.
Reassemble in reverse order,BUT, the bolt head must be assembled correctly in the bolt body, otherwise, the locking lugs wont engage in the receiver and since the rifle will fire even with an unlocked bolt, the bolt will be pushed back upon firing with possible injuries to the shooter.
To reassemble bolt head.
Engage the bolt head in the bolt body, meshing the cuts until the head is seated completely in the bolt body.
The next 2 pics show the bolt head assembled INCORRECTLY!
On pic above, the head is fully seated but the lockings lugs are in horizontal position, unlocked. If the bolt is assembled in the rifle that way, even pushed fully foward, the head will not lock in receiver, causing an hazardous situation. Never assemble a bolt this way in a M1910 Ross!
On the bottom pic, the head is seated but again in unlocked position and also upside down and cant be inserted in rifle,also the extractor cant be assembled in this position.
The next pic is a correctly assembled bolt head. The head is fully seated and the locking lugs are in locked position, vertically. Now the remaining parts can be reassembled.
Reassemble the cocking piece by inserting in the bolt. Again a small object is inserted through the hole at the end of firing pin to pull it back along with the cocking piece so the firing pin lockpin can be put in place.
The firing pin is notched to receive the lock pin.
Extractor is put back in place.
Before reinserting the bolt in the rifle, the head must be pulled in unlocked position. Pulling on the head will turn it clockwise(if viewed from behind) about ¼ turn.
In unlocked position, there's a distance of about 1 (.935 exactly) inch between the back of locking lugs and the bolt body.
The bolt is ready to be installed in the rifle.
When installed correctly, we can see the bolt head turning to the left in locked position as the bolt handle is pushed foward.(on the pics,the extractor is removed for clarity)
I hope this tutoral will be useful. Thankyou for looking.
Joce
The Ross M1910 is one of the finest bolt action rifle ever made as in regard in accuracy,smoothness and speed of operation. Unfortunatly,the M1910 main drawback,i think, is that the bolt can be assembled incorrectly if disassembled for cleaning or servicing. Recently another thread make me pulling my Ross out of gun safe to make a tutoral on bolt disassembly. I think that was important to do because of the risk of a incorrectly assembled bolt. The Ross M1910 is a straight pull bolt action rifle with a rotating bolt head. When the bolt is pushed foward, the bolt head turn about ¼ turn in vertical position to locked position. Because of the way the bolt is made, if the bolt is disassembled and assembled incorrectly, the locking lugs wont lock, even with the bolt fully foward, and the rifle can still fire with an unlocked bolt. This can cause injuries to the shooter since the bolt will be driven violently to the rear. Assembled correctly, the Ross M1910 is a perfectly safe rifle. Following is a complete bolt tear down so let's see with pics how to do it The bolt is removed from the rifle after pivoting the bolt release. When the bolt is removed from the rifle, the bolt head will likely turn in locked position since its on main spring pressure.
The extractor is removed by prying it to disengage from the bolt head and slided away from the bolt.
The cocking piece must be unlocked from the firing pin.
At the end of firing pin, there's a small hole. A small object(a little screwdriver,punch,nail) is inserted so the firing pin/cocking piece can be pulled to expose the cocking piece locking pin.
The locking pin is pushed and the cocking piece is removed(after removal of the small object previously inserted in the hole at the end of the firing pin)
The bolt head assembly is pulled from bolt body.
The firing pin retainer must be unscrewed from bolt head body, an adjustable wrench work fine.
The firing pin is then removed from the bolt head body.
There's a small lock ring against the main spring.
The lock ring have 2 dimples that mesh with notches on the firing pin retainer.
Also, the lock ring have a small tab that mesh with a keyway in the bolt head sleeve.
To remove safety, rotate straight up and pull to the right.
Remove the safety plunger and spring from the bolt handle.
Bolt disassembled.
Reassemble in reverse order,BUT, the bolt head must be assembled correctly in the bolt body, otherwise, the locking lugs wont engage in the receiver and since the rifle will fire even with an unlocked bolt, the bolt will be pushed back upon firing with possible injuries to the shooter.
To reassemble bolt head.
Engage the bolt head in the bolt body, meshing the cuts until the head is seated completely in the bolt body.
The next 2 pics show the bolt head assembled INCORRECTLY!
On pic above, the head is fully seated but the lockings lugs are in horizontal position, unlocked. If the bolt is assembled in the rifle that way, even pushed fully foward, the head will not lock in receiver, causing an hazardous situation. Never assemble a bolt this way in a M1910 Ross!
On the bottom pic, the head is seated but again in unlocked position and also upside down and cant be inserted in rifle,also the extractor cant be assembled in this position.
The next pic is a correctly assembled bolt head. The head is fully seated and the locking lugs are in locked position, vertically. Now the remaining parts can be reassembled.
Reassemble the cocking piece by inserting in the bolt. Again a small object is inserted through the hole at the end of firing pin to pull it back along with the cocking piece so the firing pin lockpin can be put in place.
The firing pin is notched to receive the lock pin.
Extractor is put back in place.
Before reinserting the bolt in the rifle, the head must be pulled in unlocked position. Pulling on the head will turn it clockwise(if viewed from behind) about ¼ turn.
In unlocked position, there's a distance of about 1 (.935 exactly) inch between the back of locking lugs and the bolt body.
The bolt is ready to be installed in the rifle.
When installed correctly, we can see the bolt head turning to the left in locked position as the bolt handle is pushed foward.(on the pics,the extractor is removed for clarity)
I hope this tutoral will be useful. Thankyou for looking.
Joce
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I will correct orthograph and grammar soon as i can, i updated somes pics to get them more presentable
