Duffield, SASS #23454 Posted January 10, 2017 Share Posted January 10, 2017 In another thread I noticed a recommendation that the 45/90 bucked the wind better than the 45/70 because of it's higher velocity. I thought that the 45/90 was an "express" round, that used a lighter bullet at higher velocity. (300 grains in the 45/90)vs (405 grains or 500 grains in the 45/70) . In my experience, lighter bullets are more wind sensitive than heavier bullets. So how is the 45/90 less wind sensitive than the 45/70? Are the shooters using the heavy 45/70 bullets in the 45/90? Will the rifling twist in the replica 45/90s stabilize the heavier bullets? And how much velocity increase is there? Thanks, Duffield Quote Link to comment Share on other sites More sharing options...
Cold Lake Kid, SASS # 51474 Posted January 10, 2017 Share Posted January 10, 2017 One consideration is the availability of brass for your rifle. I have passed up a number of them for that reason. Quote Link to comment Share on other sites More sharing options...
The Original Lumpy Gritz Posted January 10, 2017 Share Posted January 10, 2017 Only Winchester loaded it as the express round you speak of for their '86. OLG Quote Link to comment Share on other sites More sharing options...
Trailrider #896 Posted January 11, 2017 Share Posted January 11, 2017 (edited) You are correct that a higher sectional density (heavier for the diameter) bullets buck the wind better. Hence, a 405gr or 500 gr will buck the wind better than a 300 gr bullet. There were loads in the 2.4 inch case (.45-90) that used heavier bullets. Specifically, .45-82-350 and .45-85-400. The problem at BP velocities was that bullets much heavier than 385 gr were marginal on stability in Winchester M1886 and HiWall's because they used a 1-32" rifling twist, which worked better with the 300 gr load. I once had a HiWall that had been originally a .45-70 but was rechambered to .2.4 inches. It had a 1-19" twist and would put 10 rounds into 2-5/8" at 100 yds, which isn't bad with open sights and younger eyes! I have no idea what modern replica manufacturers are using with their .45-90's. With BP, the added .3 inch to the cartridge might be an advantage over the .45-70. For smokeless, stick with the shorter cartridge. Edited January 11, 2017 by Trailrider #896 Quote Link to comment Share on other sites More sharing options...
Yellowhouse Sam # 25171 Posted January 11, 2017 Share Posted January 11, 2017 (edited) The 86 has a slow twist for lighter bullets and wont stabilize the longer and heavier bullets much less feed. A good source of info is Venturino's books on Leverguns and on Shooting Buffalo Rifles Whoops i see Trailrider explained the twists. One last tidbit. The 90 or equivalent can be a thumper for extented shot strings. You might want to shoot one first. Edited January 11, 2017 by Yellowhouse Sam # 25171 Quote Link to comment Share on other sites More sharing options...
J. Mark Flint #31954 LIFE Posted January 12, 2017 Share Posted January 12, 2017 They feed the heavier bullets fine. I had one built with a proper twist for heavy bullets and it was a dandy Quote Link to comment Share on other sites More sharing options...
Yellowhouse Sam # 25171 Posted January 13, 2017 Share Posted January 13, 2017 They feed the heavier bullets fine. I had one built with a proper twist for heavy bullets and it was a dandy Well, there ya go then! Quote Link to comment Share on other sites More sharing options...
SlicLee SASS #16638 Life Posted January 17, 2017 Share Posted January 17, 2017 THE 45-110 IS THE WAY TO GO- BUCKS THE WIND TWIST IS RIGHT ITS A WINNER AT 300 500 Quote Link to comment Share on other sites More sharing options...
J-BAR #18287 Posted January 18, 2017 Share Posted January 18, 2017 Tangent alert here, kinda but not directly related to the topic. This thread just reminded me of this article, which you may have already read, but I enjoy it so here it is again: http://powderburns.tripod.com/sharps.html ...now back to our regular programming... Quote Link to comment Share on other sites More sharing options...
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