Recent content by willo

The problem is easily rectified by cleaning the posts and accompanying springs however this requires special tools which most end users don't carry and is definitely not the maintenance you want to be carrying out in the field due to the chance of loosing a number of small components. A full...

Yes you are right, apologies for the confusion, I meant to write short stroke, the 417 is the same as the 416 in this regards......don't ask me why but must have had direct inpingement on the mind as I was typing.......should have checked before posting. Nonetheless the problem remains the...

Anyone familiar with the H&K 417 16inch recce model. A good all rnd versatile platform albeit with some design faults. The bolt houses two ejector posts which are exposed by two open ports on the bolt unit located between the locking lugs. The rifle is designed around a direct impingement...

For those using powder temperature as an input in any particular ballistic calculations, can you explain how you determine your temperature input? The reason I ask is unless there is a measured correlation of thermal conductance between brass (or cartridge) and powder any temperature input is...

Require some scientific guidance on peoples understanding of the concept of powder temperature (PT). 1. Definition of PT and how this effects internal ballistics; 2. Methods used to determine PT; 3. Ability to accurately determine PT amongst ammunition natures to include variations in...