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So, let me repeat what I understand. H335 does not completely burn, so a lot is going out of the barrel. That would explain my occasional fireball using 57 grn of H335 pushing a 300 grn Hornady HP. Sounds like I could do better with IMR4198 and it's higher burn rate. Using Hodgdon data, IMR4198...

I did not use a Chrono, but I will assume the fps is close to the advertised 1,300. Also, the lead I used was 405 hard cast with copper gas check and three lube rings.

Tried out the 30gr of IMR4198 pushing a cast 405. Very comfortable to shoot. Thanks for the advice. By the way, no more fireball like I experienced when shooting 300 gr with H335.

Charlie88, based on your advice and Hodgdon data, I'm about to try 30gr of IMR4198 pushing a cast 405 which should travel at about 1300fps out of my Pedersoli carbine.

thanks.

Thanks, but I have not considered AA5744, mainly because of availability. I have to work with I have, at least for now.

My only experience with lead is loading 200gr for my 45 LC Uberti Colt and my 45 LC lever. I keep the velocities low to avoid leading. At what point or velocity do I need to be concerned about leading in the modern Trapdoor?

My grandsons love shooting all my guns. Last year, they were into 1892 levers, and my Uberti pistol, both in 45 LC. We experimented with different loads and had lots of fun at the reload table and at the range. This year, it's the history of the Trapdoor and trying to find a manageable, fun load...

H335 at 57gr and a 300gr Hornady HP is only 1,901 fps and 17,500 cup. This is the load that produces a very manageable kick plus the fireball IMR4895 at 57gr and 300gr Hornady HP is 1,826 fps and 21,700 cup. I'm hoping the IMR4895 will not produce a fireball like the H335. IMR4198 at 45gr and a...

I guess it's up to the reloader to note the difference between two powders with the same number, H4198 and IMR4198. By the way, powder and primers are starting to show up at gun stores. I bought powder today at $56 a pound, 2x what it used to be. Also bought small rifle mag primers at 9.95 for...

IMR 4198 passes the sniff test and "no-clump" test. I had never used it before and was surprised to see it was a rod and not ball type. I will be using 45gr of IMR 4198 pushing a 30gr Hornady HP at 2,008 fps. Compare this to my previous fireball load of 57gr of H335 pushing a 30gr Hornady HP at...

I finally got what I need to reload 45-70 for my new Perdosoli Trapdoor carbine. I'm loading 57gr of H335 pushing a 300gr Hornady HP. I can't find any other powder except some old IMR 4198. I'm not sure how old or the conditions under which it was stored. Here's my question. I'm getting a long...

I am certainly not looking to load anything that's unsafe. All the loads I am considering are smokeless and per the "starting" loads in the manuals and well within CUP limits that I can find anywhere including Perdersoli's Proof limits as referenced in post #22 above. Again my objective is to...

For all those concerned about max CUP in 1873 originals and replicas, read this https://bpcr.net/site_docs-results_schedules/documents/pedersoli_proof_rules_and_allowable_limits_09-04.htm

MEHarvey, yes, I have Universal which I use for low pres 45 LC in my 1873 Uberti. again, I am constrained by what I have on hand. I also have Titegroup and 700X and of course, H110, but never considered any of those.

Thanks, wronghanded, I'm loading 48.8gr of H335 pushing a 325gr FTX with a 2.040 case out of a Perdosoli (new) Trapdoor 22" barrel. That's all according to Hodgdon online reloading site (Trapdoor Rifles) specs, starting load. CUP is 17,800, 1,688 ft/s. Alternatively, same Hodgdon data, I could...

I don't see any discussion that points out the limit, pressure, etc differences between the old 130+ year old trapdoors and the new, presumably stronger new and safer replicas. Also, I'm reading on this board that old Trapdoor barrels have relatively soft steel barrels and therefore like lead vs...

1873, hey wronghanded, please do run it through quickloads. Thanks.

The Perdersoli is an 1873. I realize most everyone goes with BP pushing 405 gr cast, but can anyone recommend a good combination of jacketed bullet and smokeless powder? I plan to load light to go easy on my old shoulder.

I recently bought a Perdersoli Replica 45-70 for fun shooting. It's next to impossible to find powder, but I happened to have some H335 from a few years ago which I plan to use with a 325 FTX. Problem is the Horn 8th ed says trim the case to 2.040 for this bullet in a trapdoor, but does not list...