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· Registered
19 Posts
Discussion Starter · #1 ·
I have a Marlin .35 Remington that needs to be firelapped, and was wondering if I can use my Speer .358 HBWC's to do it?  If I can what would be an appropriate charge of Bullseye to use?  Thanks, JFD.

· Inactive account
7,804 Posts
Hi, JFD:
  Good question. My .35 Remington goes .359" and a lot more do too.  That's the correct groove diameter, not .358" (Hatcher's Notebook, page 435). Would a HBWC expand enough to fill the grooves?  3.0 grains of Red Dot is about right for a .303 British, so I'd try 3.0 grains of Bulleye for a start. (Case capacity for a .303 with a 180 gr. bullet is 50 grains water, 44 grains for a .35 Remington with a 200 gr. bullet seated.)

  Try popping a slow HBWC into sawdust or wetpack and see if the bullet is expanding to the bottom of the grooves. It's pretty obvious when you look at it.

  You could bump the diameter up in a vise or shop press, although the HB might collapse on you. A solid base WC would work, and it doesn't take much pressure to bump them.


· The Hog Whisperer (Administrator)
39,116 Posts
Haven't used HBWC's myself, so this is theory, but I'd load them backwards, to avoid any possibility that the skirts could separate and stick in the bore.

Jack's suggestion of 3 grains of Bullseye sounds about right (4 grains works in the '06 so there would be some reduction for the smaller case).

As far as being undersized - the lapping compound will bring up the effective diameter of the bullet somewhat, but really you'd be better off with some lapping bullets in the range of .360" or so.  

I don't suppose it would hurt to try 10 or 20 and see if you've made progress at that point.

Good luck.
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