bullet1747 Posted April 18, 2014 Report Share Posted April 18, 2014 just been reading about a 302 and steel proof ,excuse my ignorants but is it the explosion or the steel shot that's the problem, I have no need for steel shot so that's why I ask and before some slates the question I'm not ashamed in asking Quote Link to comment Share on other sites More sharing options...
fenboy Posted April 18, 2014 Report Share Posted April 18, 2014 It could be both , high performance steel may create too much pressure , steel shot may cause damage to the barrel if certain guidelines are not adehered to. Quote Link to comment Share on other sites More sharing options...
bullet1747 Posted April 18, 2014 Author Report Share Posted April 18, 2014 cheers mate Quote Link to comment Share on other sites More sharing options...
kent Posted April 18, 2014 Report Share Posted April 18, 2014 If steel pellets come into contact with steel proof barrels they will score them. Its about pressure in the chamber and a tighter choke on steel pellets that will not compress like lead, this latter point raises barrel pressure. Don't choke lead tighter than modified all you do is get silly tight patterns at long range that lack the energy, I can out pattern the energy of 36 grm no 3 Gamebore mammoth with a Kicks in modified and these aint bad shells Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted April 19, 2014 Report Share Posted April 19, 2014 If steel pellets come into contact with steel proof barrels they will score them. Its about pressure in the chamber and a tighter choke on steel pellets that will not compress like lead, this latter point raises barrel pressure. Don't choke lead tighter than modified all you do is get silly tight patterns at long range that lack the energy, I can out pattern the energy of 36 grm no 3 Gamebore mammoth with a Kicks in modified and these aint bad shells the choke issues are, steel shot can open a choke quite easily that was the problem in the older days. chokes that were tight were usually crimped, a few shots of steel shot and they start to be permenately shot open. that was the problem with fixed choke old guns. the british gun trade say no more than 1/4 with steel. the cip proof body say no more than 1/2 with large steel shot. i personally would use 1/4 with all steel shot, i would use 1/2 with smaller shot (thats 2s max (that is just my personal opinion)). this is standard chokes, not those aftermarket ones which are hardened, exclusively for steel shot / big steel. the hp cip criteria, is for shells and barrels for upto 1050bar, but most shell manufacturers wont go that high, the manufacturers of steel shells state cip and what gun standard the shells can be used in. normal steel shells, wouldnt even bat an eyelid at 32g loads upto 2 with 1500fps 1/4 choke. homeloads, i`d use 24-42g loads of big shot, 1400fps min should take care of anything 1/4 choke. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.