Originally Posted by
longbowelk
I have not tried the wads so that would be first to see if it will tighten the group. One rifle I'm working with is TC Hawken with the GM LRH barrel with 1:30 twist. The conicals are my own cast 450s at .504, sized to .502. Pure lead. The same load in another TC Hawken with the original 1:48 twist shoots a much tighter group. It must be a fluke deal as the first TC Hawken with its original 1:48 Barrel is not that great. I guess that proves up the point that there all different and you just have to find what they like. The wads may be the ticket. If not, maybe a harder bullet. I'm also working with a CVA Optima with 1:28 twist trying to get conicals to fly. Will try the wads there too.
Actually your GM LRH .50 Cal you speak of would have a 1:28 Twist, i own all 4 of the GM fast twist Drop in barrels, 2 .45 Cals, a super fast 1:18 Twist (rare barrel, my friend Idahoron gifted me) and my .45 LRH which is 1:30 twist, my .50 LRH in Stainless is 1:28, and My .54 Cal LRH is 1:28 as well. The only 1:30 Twist GM LRH i know of is the .45 Cal. An Over Powder Wad can really make a Difference! I use store bought Oxyoke Brand 1/8” Wool, Its not wrong to go oversize with the Wool Wads, example being- for .50 Cal i have used a .54 Cal Wool Wad, and .54 Cal i have used a .58 Cal Wool Wad, being oversized Wool they are easy to get down, just push the Wad together a little with your thumbs to get them started straight. I have also used Caliber Specific Wool Wads and in all honesty I can’t tell a Difference in Accuracy? They both shoot equally well, But the oversize makes good sense to me that they would create a better Gas seal. Again, With a Grease Groove Conical i feel an 1/8” Wool wad at the bullet base is important