I am aware of two schools of thought regarding advice related to supporting the first bit (usually about 1.5") of barrel forward of the recoil lug... They relate to the length of tenon. One theory suggests that it is beneficial to extend the bedding support if the tenon is short and the barrel is heavy. The other suggests that if machining fit is good, "normal" tenon length is sufficient to support even heavy barrels.
Regardless of preference, at least two factors will come into play with bedding contact, those being the effect on harmonics, and heat expansion.
I have tried both, and now stick with free floating the entire length of the barrel, but my shooting ability may well be at a level where shot dispersion can be best explained by "driver error".
I suppose the best advice for heavy barrel rigs would come from the experience of the short range BR shooters?
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