Well that sux!!
I’m shooting commercial hard cast 500gr RNFP’s (Spartan Projectiles) with great results over 33.5gr of 2207. Turns up 1380fps out of 16” barrel.
I’ve got an old H&R Model 155 (cost me a slab!) that I went full retard on for smacking plates out to 400yds.....20 minute pic rail, 2-10x44 MOA reticle Bushnell, muzzle brake, spray canned it ‘coyote tan’ as a protest against the tactards....I really built it to give my ‘tactical target shooter’ mates the s**ts.
I swear it’s more fun ringing steel with it at 300 than at a km with a ‘real rifle’!
The bloody thing shoots 1 1/2” 100m groups too.
Hope your 45-70 days aren’t over bloke!
Regs,
Tank.