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Double Rifles, Single Shots & Combinations >> Double Rifles

LTK
.224 member

Reged: 27/02/24
Posts: 33
Loc: Alberta Canada

Re: .577 BPE needs the 640 grain
17/05/24 11:29 PM

Before purchasing a mould, plug your data into this twist rate calculator on "Berger bullets" sight to confirm stability. When I bought my .500 BPE last year it came with a box of loaded ammo than had 440GR woodleigh bullets. I had no intention of shooting someone else handloads so I pulled the bullets and dumped the powder and reloaded them with a load that I KNOW what is in there. My research showed that Alex Henry .500 were intended to shoot 300-340GR bullets. I checked the rate of twist and found it to be 1-38", much too slow for a 440 gr bullet. I bought a mould from NOE that throws a 325GR slick bullet (@ 20-1 lead/tin) and according to the Berger bullet calculator, my rifle should provide great stability for that bullet. My preliminary tests suggest this to be so as, at a particular powder charge it put 5 out of 6 shots in one large but ragged hole @ 50 yards.

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Subject	Posted by	Posted on
.577 BPE needs the 640 grain	casper50	17/05/24 07:26 PM
Re: .577 BPE needs the 640 grain	LTK	17/05/24 11:29 PM
Re: .577 BPE needs the 640 grain	casper50	18/05/24 12:37 AM
Re: .577 BPE needs the 640 grain	LTK	18/05/24 04:44 AM
Re: .577 BPE needs the 640 grain	3DogMike	19/05/24 12:12 AM
Re: .577 BPE needs the 640 grain	DarylS	19/05/24 05:14 AM
Re: .577 BPE needs the 640 grain	pondoro62	19/05/24 07:02 AM
Re: .577 BPE needs the 640 grain	DarylS	19/05/24 12:08 AM
Re: .577 BPE needs the 640 grain	85lc	18/05/24 03:06 AM
Re: .577 BPE needs the 640 grain	casper50	18/05/24 03:52 AM

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