Hi guys,

I'm wondering who would be the suggested "go to" for cylinder reaming and forcing cone work to be done on my TRR8.

Also, this may sound wierd, but does anybody hone out bullet sizers to match the throat job? Or do you buy custom bullet sizer to the work done?

Thank you in advance!!

Unless you have cylinder throats that are unequal in size there's no benefit to reaming them. Have you checked them with a pin gauge?

I ream my revolvers if cylinder throats are under size compared to bore diameter. Mainly when shooting cast bullets. I haven't touched the forcing cone yet, I have heard 11* is best with cast bullets?

That would depend on how well timed your gun is. The further out of time the cyl is to the bore at lockup the wider the cone angle needs to be to guide/"force" the bullet into the barrel. If you need a wider cone you need first check throat to bore alignment at lockup. Widening the cone to compensate for poor cylinder alignment isn't the way to go in my opinion. If your cyl alignment is spot on the 11 degree cone doesn't help.
I agree with the undersized throats. If smaller than the bore the bullets will lead up the bore

The degrees the cone is cut has nothing to do with its size an 11 degree forcing cone and a 5 degree on should both be the same diameter at the widest point. The difference is that one is more gradual than the other, a bit easier on the bullet and possibly a bit better about leading. I use a 11 degree cutter and lap when I do mine. I do believe timing and a good lap job have more to do with it than the angle though.

You should be able to get a stock bullet sizer in 356 (9mm) 357 or 358.

What makes you think your throats are not right? A 357 jacketed bullet should go through with slight pressure.

I did ream two of my Revolver Forcing Cones (11º) 30 years back, and quite honestly found no real difference in performance. Maybe on paper - but in actuality I think it's more of a way to get the consumer to spend more money at the Gunsmith's. Personally I would not do it again.

I just rented a throat reamer to do my 357 & 38's.
4D reamer rentals.
I also used them in the past for my 44's & 45's.