In order to participate in the GunBroker Member forums, you must be logged in with your GunBroker.com account. Click the sign-in button at the top right of the forums page to get connected.
Lead bullet loads
johnler
Member Posts: 6 ✭✭
I need a good load for a Marlin 336 in 30-30 for a 135 grain lead bullet with a BHN of 15. I can get smoke,leading, and patterns but groups elude me.
Comments
Microgroove rifling is fine and shallow, but large diameter.
Cast bullets must fill the grooves.
And not go too fast. Do you need more than pistol velocity?
I have seen far to many instances where people use cast bullets in a rifle and push them too fast. Even w/o gas checks.
His symptoms sounds like his load is to hot for casts.
Lymans cast bullet handbook is a great sourse.
Here are some culled from Castpics
Cal bullet mold weight powder start max
30-30 Win Lyman #311410 131gr Alliant Unique 10gr 12gr
30-30 Win Lyman #311410 131gr Alliant 2400 18gr 21gr
30-30 Win Lyman #311410 131gr IMR 4227 19gr 22gr
30-30 Win Lyman #311410 131gr IMR 4198 23gr 27gr
30-30 Win Lyman #311410 131gr IMR 3031 29gr 34gr
All averaged between 1900-2200 in test gun accroding to the site.
As always, reduce loads and work up in your firearm as it may differ from the test guns.
Some folks use Trail Boss, others loaded Unique lighter at 9.0 for plinking loads.