CamPro 45-70 Projectile and Powder Type Question

[Devlin]

I stumbled onto a deal for some Campro 45-70 projectiles, 405 grain RNFP FCP so scooped them up without looking at the reloading data super closely on what powders work with them and they have data for H4198 whereas I have IMR4198. So checked a few of the books Lyman 47th edition and it has data for IMR4198 for 400 grain jacketed FN starting at 29.7 grains (trapdoor load levels)

Anyone seen data for IMR4198 and this projectile specifically or is it close enough to H4198 with mild loads plinking loads loaded at Trapdoor levels to be safe?



These are the projectileshttps://www.campro.ca/index.php?id=1021&produit=Cal. 458 405gr RNFP FCP

 

[mac100]

I load 30 grains of IMR 4198 but shoot it in my Uberti 1885 modern rifle. Very low recoil. I also use that same load in an antique Remington rolling block in 43 Egyptian that works well. I think if you use the starting load of the H4198 data you should b3 fine.

 

[Devlin]

Thanks very much, these will be going into a Pedersoli 1874 Sharps reproduction so a fairly strong action (forgot to mention that piece)

 

[4fifty8]

Good product great for plinking/target practice use these in various 45 caliber rifles. Pretty good results with Re7 in my Trapdoor Carbine.

https://i.imgur.com/ZqzkYCn.jpg / https://i.imgur.com/m5BBwhz.jpg / https://i.imgur.com/uMbNRFg.jpg

 

[Re3iever]

Triple7 - 60g (40g plinking) or Goex ffG 70g (50g plinking)

Retreever

 

[Bubba Yugga]

I put 40 grains of IMR 4198 under the Campro 405 pills as a stout plinker for my Marlin 1895.

 

[Devlin]

Got a reply from Campro on this in case others are interested here is what they recommend

 

[CzyHorse]

I often use Gordon's Reloading Tool to compare different powders.