Bass Ackward
07-20-2008, 09:37 AM
By definition, a Taylor throat is supposed to allow the bullet to exit the cylinder free and clear of stresses and then perform the bore alignment in the funnel created in the barrel. In order to do this, that means that the opening needs to be large enough in diameter NOT to interfere with the bullet's exit. It was made with bore diameter bullets (jacketed) in mind. Translation: here is another opportunity to lose seal that you worked to establish.
In effect, this is what in the old days was considered a worn or shot out forcing cone. A way to put 20,000 rounds of wear into a new gun so that it won't shoot loose and sound like a baby rattle when you shake it. We have reports that as a forcing cone wears, (lengthens) that you lose the ability to shoot short / light bullets because you can't maintain seal. This is not necessarily so, but it will show up for normal to low pressure cast loads that obturation doesn't occur at the lower pressure levels now present in the cone. That in itself is no big deal, unless your only lead supply is limited to WW cause you will lose load and powder flexibility chasing seal. Which is the same exact problem with a .... constriction which requires reobturation. :grin:
Bottom line is that I have access to three Taylor's and all three were used well before and after throating. I had no real accuracy improvement from peak performing loads. BUT ..... it did improve the accuracy more loads in general. (Just not enough that I would use those loads anyway.) One is now a jacketed only gun. So if you don't like changing mixes, or are limited to a WW supply, this can mean that you are now stuck to higher pressure loads.
IF your barrel is not in perfectly straight in the frame, then a Taylor is going to be cut true with the bore, not with bullet travel. That's why if I was Tayloring I would want frame alignment and thread size checked and trued, etc. If you don't correct the real problem it will have to wear (break in) anyway. If you have any alignment issues or a constriction and you fire lap, you WILL shoot in a "perfect" Taylor for "THAT" gun that doesn't create tool marks and removes metal EXACTLY where it needs removed. We know from experiences here, sometimes fire lapping or tayloring works, and sometimes results can be disappointing.
Proper diagnosis of the problem is the key. That's why I hold my opinion.
In effect, this is what in the old days was considered a worn or shot out forcing cone. A way to put 20,000 rounds of wear into a new gun so that it won't shoot loose and sound like a baby rattle when you shake it. We have reports that as a forcing cone wears, (lengthens) that you lose the ability to shoot short / light bullets because you can't maintain seal. This is not necessarily so, but it will show up for normal to low pressure cast loads that obturation doesn't occur at the lower pressure levels now present in the cone. That in itself is no big deal, unless your only lead supply is limited to WW cause you will lose load and powder flexibility chasing seal. Which is the same exact problem with a .... constriction which requires reobturation. :grin:
Bottom line is that I have access to three Taylor's and all three were used well before and after throating. I had no real accuracy improvement from peak performing loads. BUT ..... it did improve the accuracy more loads in general. (Just not enough that I would use those loads anyway.) One is now a jacketed only gun. So if you don't like changing mixes, or are limited to a WW supply, this can mean that you are now stuck to higher pressure loads.
IF your barrel is not in perfectly straight in the frame, then a Taylor is going to be cut true with the bore, not with bullet travel. That's why if I was Tayloring I would want frame alignment and thread size checked and trued, etc. If you don't correct the real problem it will have to wear (break in) anyway. If you have any alignment issues or a constriction and you fire lap, you WILL shoot in a "perfect" Taylor for "THAT" gun that doesn't create tool marks and removes metal EXACTLY where it needs removed. We know from experiences here, sometimes fire lapping or tayloring works, and sometimes results can be disappointing.
Proper diagnosis of the problem is the key. That's why I hold my opinion.