Greg Tannel Gre-Tan, Bushing The Firing Pin Hole, Cure For Cratering

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10 жыл бұрын

Fact not myths covering the cause of cratering primers when you are at or below standard loading pressure. Understanding the cure and added benefits from a properly installed bushing. www.gretanrifles.com/

Пікірлер: 19

@jonlennon3348 8 жыл бұрын

Great video and you did a badly damaged Remington for me and now it is perfect with zero problems. Thanks for your excellent work.

@bavariasuhl 6 жыл бұрын

Greg did 2 bolts - a rem 700 and a rem 7 , turned it around in 2 weeks --- fantastic job.

@cesarsaavedra3095 9 күн бұрын

Best in the business wish you were still taking work.

@leeNWHuntinganFish4713 4 ай бұрын

This is what I'm exactly going through with my 6.5x284 Norma with H-4831SC with almost as low charge as the books show. Thank you for taking time to tell us Bob from Capstone sent me your way 50 weeks out Wow!!! I guess I will just purchase the entire bolt. I find it odd they don't correct this issue sense checking my firing pin I see a flat spot on the tip which has made it like a spear so I'm punchering the primer. Check the ends of your firing pin for roundness it could be sneaking up on you like myself.. another awesome video, Greg it's why your so busy Wisdom.

@edmobley3 9 жыл бұрын

The best explanation I've heard

@95talon07 Жыл бұрын

Great explanation thank you very much

@ADVJason 3 жыл бұрын

I totally need to get this done on my 700. Hope things back to normal so I can send it to you soon

@guidogg21 3 жыл бұрын

Hello What is the correct firing pin protrusion for a 308 win AR-10 rifle? Is it true that it is more than in an AR-15? This means 0.044-0.059" for 308 and 0.028-0.036" for 223. Regards GUIDO

@stormy7135 5 жыл бұрын

I own a FN SPR that blows 2-3 primers within every 100 rounds, have 1400 rounds throught the rifle. I took it to a gunsmith today and he said my firing pin was too long and shortened it. He test fired it today and I could still see cratering and I suspect he fixed nothing, guessing it will still blow primers. The rifle was designed for a large primer and I shoot Lapua small primer 6.5 CM. Do you think you could still bush the firing pin even though its been shortened? Thanks

@markrichards2634 6 жыл бұрын

Gregg, regarding hardened steel as in rssr's post, is this why Mil Surp Mausers are not bushed ?

@anthonygendron9737 4 жыл бұрын

This looks like a Bergara bolt and appears to be the problem I’m having.

@timothyconnor8745 7 жыл бұрын

How do I get ahold of you ? Website is down or something......

@Shifty6BR 7 жыл бұрын

Timothy Connor Websites back up and a good thing..Gre Tan is top notch and I have more stuff to send out his way

@airborne350g 2 жыл бұрын

Do you work on Ruger Precision bolts? Nevermind, saw your website and you are no longer taking in new work.

@russr 8 жыл бұрын

why dont you do this work on AI bolts?

@gregtannel2678 8 жыл бұрын

+russr AR platform and foreign gun companies us case hardening steel on the bolts and firing pins. They only have a thin skin of case hardened steel. Once machined off, soft steel. Bolt action rifles are made from tool steel 4140 for the most part. When hardened, it is completely hardened. Case hardening steel is a cheaper way to manufacture.

@thaiexodus2916 8 жыл бұрын

Thanks much for this vid. At 3:00 The firing pin itself, the business end, obviously guides the entire pin. This is not it's job. That is what this entire video is about. Why not make the chamber the pin rides in near as precise as the firing chamber?

@gregtannel2678 8 жыл бұрын

The bolt shroud guides the F/P at the rear of the bolt and the bushed bolt guides the front. The internal body of the bolt is larger so as not to have the F/P spring & dry fire collar rub. A more consistent F/P travel is preformed from shot to shot. There is no gain to have any other part of the bolt touch the F/P with two points already guiding it.