Not having much luck on repairing my Jeep myself...so I figured I would see what's up on here...
DLT205...trying to get a good load for thoise 2 bullets using Varget ehh...2 things to remember with the 45-70 cases...to ensure getting the powder to burn completely...you need enough bullet pull on the case to get it...Pick up a Lee factory crimp die and use it...My 2400 fps 300 grain Nosler partiton load requires a good solid crimp...and when I loaded both of the bullets your using...I tried Varget...but was very disapointed in the results...50 grns. of Varget is a max trapdoor load with the 405 CPWLNGC bullet..and...you don't have to worry about hurting the rifle going a little higher velocity...just you shoulder...
...so...I have had great accuracy with Reloader 7 & at 46 grains with the 405 Cast Performance bullets...velocity was about 1835 fps out of my 26" Marlin Cowboy..and 1710fps with the 18-1/2" Marlin Guide Gun...but you really need a good heavy crimp...and the Lee Factory Crimp die will certainly do a good job...Lymn list the load for #1's and #3's Rugers...but the pressures are way down around 23,000 cup...so it will be safe in the Handi...You can try the same amount in with the 350 Hornady...but with you velocities as low as what they are...you might be better off going to a 300 grain Speer Unicore...you'll get much better expansion with it...over the 350 grainers on deer...and the trajectory will be better as well...My favorite powder for the 45-70 is H4198...and it burns completely clean as long as I have a super tight crimp...and accuracy is MOA with the 300 grain Partitions and the factory loadings on these are around 1850 fps...and they are MOA as well from my rifle...so...you could load them up a-little higher if you choose to.....My partition load is not a plinking load...but one of the best hunting loads I have every loaded for the 45-70...Another powder I have heard works good...is H 4895...the velocities should be close to what your getting now with the Varget...and pressures will be down around 21,700 cup for using 53 grains of it......If you want a little more velocity with the 350 Hornady...you could also try some H322 for it...52 grains will net you around 1898 fps...at 25,800 Cup...the recoil will certainly be more brisk...but your not really going to be benching the heavier loads a-lot anyway...the H322 will work for the 405 grainers too...47 grains to start for 1669fps.24,800 cup....53 grains max for 1909fps..37,000 cup...
All my loads are in new Remingtons nickle cases using Remingtons 9-1/2 primers...all of them are safe in my rifles...can't say about yours...
Mac